How do i solve the cube root of -(x-7)^4? pls explain

The triangles are similar. what is the value of x? enter your answer in the box. x = two right triangles. the larger right triangle is labeled x on the longer leg, 12 on the shorter leg and 20 on the hypotenuse. the smaller triangle is labeled 4 on the longer leg, 3 on the shorter leg, and 5 on the hypotenuse.

The hawaiian alphabet has 12 letters. how many permutations are posible for each number of letters?

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?