What is the first step to solve for 9 − 4 = 18?

Find the height of a square pyramid that has the volume of 32 ft.³ and a base lengthof 4 feet

Segment an is an altitude of right δabc with a right angle at a. if ab = 2, squared 5 in and nc = 1 in, find bn, an, ac.

Diane’s bank is offering 5% interest, compounded monthly. if diane invests $10,500 and wants $20,000 when she withdrawals, how long should she keep her money in for? round to the nearest tenth of a year.