Salma is in charge of decorating the school gym for a party. she has budgeted some money for decorations. balloons (x) cost $2.50 a bunch, and streamers (y) cost $1.25 per pack. salma wants to get at least 20 decoration items, but she can spend no more than $45 on decorations. which system of inequalities represents the situation above? a. {x + y ≥ 202.5x + 1.25y ≥45 b. {x + y ≥ 202.5x + 1.25y ≤45 c. {x + y ≤ 202.5x + 1.25y ≥45 d.{x + y ≤ 202.5x + 1.25y ≤45

your answer would be A.

Step-by-step explanation:

Already you know that answers b and d are not an option because it is saying she can use OVER 45 dollars. So she has to use EQUAL or less then 45 dollars. So the answer has to be A or C. In answer C it is saying she can spend MORE then 2.50 for a bunch where she cant. She has to spend exactly or less then that amount. So your answer is A.

last one.

step-by-step explanation:

last one.

generally speaking, the others follow some sort of pattern that correlates to either linear (looks like a straight line) or sinusoidal (looks like an s).

the last one is just a random cloud of points that doesn't correlate to any particular known order.

y = 3x+4

step-by-step explanation:

to find the slope

slope = (y2-y1)/ (x2-x1)

    = (-8-4)/ (-4-0)

    = -12/-4

  = 3

using the slope intercept form of a line

y= mx+b

we know the slope is 3

we know the y intercept is 4 ( the point where it crosses the y axis or x=0)

y = 3x+4