Each class at Briarwood Elementary collected at least 54 cans of food during the food drive. If there are 29 classes in school, what was the least number of cans collected?

the first one is x^2+2x+2

the second one is x^2+4

the last one is x^2-4x+8

answer: y = -2.5x - 15

              (-6,0)

step-by-step explanation:

second option

step-by-step explanation:

the measures of a triangle equal 180. use that to find x.

2x+3x+4x=180

9x=180

9x/9=180/9

x=20

now you know x, you know angle a is 40°, angle b is 60°, angle c is 80°.

because angle a is 40°, the first option doesn't work.

because angle b is 60°, the second option does work.

when you add angle a and b, you get 100°. complementary means it equals 90°, so the third option doesn't work.

when you add angle a and c, you get 120°, which is not 100.