sean budgets 160$ a month to cover school lunches and any additional dining expenses. The function y= 160 - 4x represents the amount of money m remaining after spending $4 on x meals. find the zero and explain what it mean sin the context of the situation. find the domain and range.

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.

answer: what is the question you're trying to ask?

step-by-step explanation: