Which expression can be used to solve the problem below? On a recent math test, Jill scored 3 points for each of the 18 multiple choice questions she answered correctly and 5 points for each of the 6 short response questions she answered correctly. What was her total score on the test?

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.

f(x)=2/3x-8, which give g(x) the greatest value.

step-by-step explanation: