What is the value of x: 7,
square root of 77,
square root of 85,
square root of 7

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

Tom can paint the fence in 12 hours, but if he works together with a friend they can finish the job in 8 hours. how long would it take for his friend to paint this fence alone?