Frank invest $500 at a simple interest rate of 3%. how much interest will earn after 5 years

Because of your favorite lemonade it is $3.84 for 3 gallons. write this as an unit rate

What expression is equivalent to log3(x+4)

Aremote-controlled boat can travel at 4 feet per second in calm water. the boat traveled 48 feet with the current, and then it traveled 16 feet against the current in the same amount of time. how fast is the current?