If DM = 25, what is the value of r?
r + 2
2r-13
M
D
G

Nine more than four times a number is the same as one less than twice the number. find the number?

Fa bus driver leaves her first stop by 7: 00 a. m., her route will take less than 37 minutes. if she leaves after 7: 00 a. m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?

Two variables, x and y, vary inversely, and x=12 when y=4. what is the value of y when x=3?