Help asap!!! compute $\left(-3\sqrt{128}\right)\left(-4\ sqrt{50}\right)$

Solve the equation w^3 = 1,000 i honestly dont know how to punch this into a calculator pls

A3-dimensional figure has a square base and 4 lateral faces that meet at a point. explain the difference between the cross sections when a slice is made perpendicular to the base through the vertex, and when a slice is made perpendicular to the base and not through the vertex

Awasher and a dryer cost $701 combined. the washer costs $51 more than the dryer. what is the cost of the dryer?