What is the result when 3/8x+2 1/5 is subtracted from 3 1/2x−4 1/10?

Which of the following is the shape of a cross section of the figure shown below

Using elimination, what is -4x+2y=-12 4x+8y=-24

Question 6(multiple choice worth 5 points) (05.02 lc) what is the value of x? a right angle is shown divided into two parts. the measure of one part of the right angle is 10 degrees. the measure of the other part is 2x 20 40 45 85