Simplify each expression -7x+4(1+x)

Solve the equation -9p - 17 =10 a -3 b. 16 c. 18 d -16

Over the last 8 nights, elyse earned the following in tips: {105, 120, 84, 95, 100, 132, 140}. if she earns $140 a night for the next four nights, which measure of center would increase more, the mean or median?

Could somebody me with this radical simplification?