Kathy's internet company charges a connection fee of $0.21 for each call she makes from her computer. the company also charges $0.06 per minute for each call made from her computer. kathy was charged 1.95 for five calls in january.

part b. how many total minutes did kathy talk on the five calls in january?

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.