Mr B has $20000 to invest. He invests part at 6% and the rest at 7%. He earns $1280 interest. How much did he invest at each of the rates?

Aright triangle includes one angle that measures 30º. what is the measure of the third angle? a. 30º b. 90º c. 60º d. 130º

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 ?

Which of the following represents the range of the graph of f(x) below