The expression 2500(1.15)t represents the value of a ​$2500 investment that earns 15​% interest per​ year, compounded annually for t years. What is the value of a ​$2500 investment at the end of 5 ​years?

Solve with work both bert and ernie received an increase in their weekly salaries. bert's salary increased from $520 to $520. ernie's salary went from $580 to $645. find the percent of increase for each salary. what was the larger of the two percents ?

Determine the difference: 3.2 × 1010 – 1.1 × 1010. write your answer in scientific notation.

Evaluate cos2θ for cosθ = square root of 3/2