The number of hours needed to assemble computers varies directly with the number of computers. If 12 computers can be assembled in 9 hours , how many computers can be assembled in 15 hours ? Write a direct variation equation to solve.

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