Select the expression equivalent to (4x + 3) + (-2x + 4)

A. -2x + 12
B. -8x + 12
C. 6x + 7
D. 2x + 7

The radius of a sphere is 3 inches. which represents the volume of the sphere?

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table

Traffic on saturday, it took ms. torres 24 minutes to drive 20 miles from her home to her office. during friday's rush hour, it took 75 minutes to drive the same distance. a. what was ms. torres's average speed in miles per hour on saturday? b. what was her average speed in miles per hour on friday?