Answer:
Um wat?
Step-by-step explanation:
Simple interest formula: A = P(1 + rt) where P is the Principal amount of money to be invested at an Interest Rate R% per period for t Number of Time Periods. Where r is in decimal form; r=R/100; r and t are in the same units of time.
Four times fifteen plus twenty in parentheses
idk if its correct though <span />