The variable s is proportional to t, and s=15 when t=75. determine t when s=70

You put $2000 in an account with a simple interest rate of 1.5%. how long does it take for the account to earn $60?

Adriana sold 50 shares of a company’s stock through a broker. the price per share on that day was $22.98. the broker charged her a 0.75% commission. what was adriana’s real return after deducting the broker’s commission? a. $8.62 b. $229.80 c. $1,140.38 d. $1,149.00

Given the expression (7 ? 4i) ? (2 + 6i), perform the indicated operation and write the answer in the form a + bi.