True or false? i need on a math question really bad! and i need work too! my teacher wants at least 5 mathematical sentences for

If x + 10 = 70, what is x? a. 40 b. 50 c. 60 d. 70 e. 80

Olga bought a new skirt that cost $20. sales tax is 5%. how much did olga pay, including sales tax? 7.

The triangle shown has a hypotenuse with a length of 13 feet. the measure of angle a is 20 degrees. and the measure of angle b is 70 degrees. which of the following is closest to the length, in feet, of line segment ac? no need to use a calculator to find the trig numbers. each function is listed below. 4.4 5 12.2 35.7