Which of the following expressions is 8x + 16 not equivalent
2x + 5 + 6x + 11
10x - 2x - 20 + 4
2(4x + 8)
8(x + 2)

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.

5x−4≥12 or 12x+5≤−4 can you with this problem

Adolphin is swimming with her friend. the dolphin jumps to a height of 4.54.54, point, 5 meters above the surface of the water as her friend swims 9.89.89, point, 8 meters directly below her. what is the position of the dolphin's friend relative to the surface of the water? meters