Write an expression for: The sum of 5 times a number and twice a number is 42.

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.

The figure shows the front side of a metal desk in the shape of a trapezoid. what is the area of this trapezoid? 10 ft²16 ft²32 ft²61 ft²

If t8 = 4 and t12 = −2, find the first three terms of the arithmetic sequence.