Solve for X

A. 3
B. 10
C. 1
D. 6

please help... Thank you so much!! :))

Find the missing factor. 7s2 + 25s + 12 = (s + 3)( ).

For what value of x does 4x = (1/8) x + 5?

Savannah is painting a striped background for a mural on a wall that is 1515 yards long. she wants a total of 9696 stripes that are all the same width. which calculation should savannah use to decide how wide to make each stripe?