A system of equations is shown below. I-y= 1.5
12(x + y) = 8
Which situation is modeled by this system of equations?
A
Anthony (X) eats 1.5 times as many slices of pizza as Ciara (y) eats. Together,
Anthony and Ciara eat 8 slices of pizza.
B.
A book (x) and a CD (/) weigh a total of 1.5 pounds. Two books weigh 8 pounds more
than two CDs
C.
An extra-large cup of coffee (x) costs $1.50 more than a small cup of coffee (Y). TWO
extra-large cups of coffee and two small cups of coffee cost $8.00.
D.
A hamburger (x) costs $1.50 less than a hot dog (). Two hamburgers and a hot dog
cost $8.00

12. decide whether each statement is always true, sometimes true, or never true. a. when corresponding points of an original figure and its reflection are connected, the resulting segments are all perpendicular to the line of reflection. b. when a point is reflected over a horizontal line, the y-coordinate of the point stays the same. answer both questions and explain

You and three friends will be going out to eat at your favorite restaurant! each of you will order three items of your choice. you will also need to leave a tip. if you split the bill evenly among all four of you, how much will each person need to contribute? locate a menu for your favorite restaurant and pick three items for yourself and each friend. list the restaurant name, items, and prices in a table like the one below. in the column labeled subtotal, determine the cost of each person’s order. the customary tip is 20% of the total bill. in the column labeled tip, calculate the amount of tip each person should leave. in the column labeled total bill, determine the total of each person’s order, including the tip. restaurant name: names item 1 price item 2 price item 3 price subtotal tip total bill your name friend #1 friend #2 friend #3 part 2: questions answer the following questions, showing all work: what is the total cost of the entire bill (all four meals), including tip? write an expression using fractions to show how to determine the amount that each person will pay. then calculate each person's contributions showing all steps in long division. if each person paid an equal amount, who would save the most money? explain your reasoning using at least two complete sentences.

Mary beth used the mapping rule to find the coordinates of a point that had been rotated 90° counterclockwise around the origin. examine the steps to determine whether she made an error. m (3, –6) is rotated 90° counterclockwise. (x, y) → (–y, x) 1. switch the x- and y-coordinates: (6, –3) 2. multiply the new x-coordinate by –1: (6(–1), –3) 3. simplify: (–6, –3) .