Colin invests £1200 into his bank account. he receives 3% per year simple interest. how much will colin have after 4 years? give your answer to the nearest penny where appropriate.

Naomi’s parents want to have 50,000, saved for her college education, if they invest 20000 today and earn 7% interest compound annually, about how long will it take them to save 50 thousand

Which equation results from adding the equations in this system? x+6y=9 and -x+2y=-15

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two