On january 21 of this year, the first law requiring that drivers of automobiles have licenses went into effect. to learn the year, solve this puzzle. the two-digit number formed by my tens and units digits is the 12th prime number and is considered normal body temperature when measured in degrees celsius. my tens digit is 33 1/3% of my hundreds digit. the sum of all of my digits is the same as the number of triangles that make up an icosahedron. what year am i? 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.

Measures of the angle of r, 31 s (x+4) t (3x+9)

F(x)=5/6x+3 which of the following is true