If DE = 4 x + 10, EF = 2 x -1, and DF = 9 x - 15, what is the length of DF?

The measure of an angle is 117°. what is the measure of a supplementary angle?

What ratio is proportional to 18/21

You had $235 in your savings account nine weeks ago. you withdrew the same amount each week for 8 straight weeks. your balence was then $75. solve the equation 235 - 8m=75 to find how much money m you withdrew from your account each week. 2 points