The hu family goes out for lunch, and the price of the meal is $49. the sales tax on the meal is 7%, and the family also leaves a 20% tip on the pre-tax amount. what is the total cost of the meal?

50 balls

Step-by-step explanation:

First divide 10 by 2=5x10

0.32

step-by-step explanation:

2.24/7

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.