How many possible combinations in a 4-digit code is there with the numbers 4 and 2

Afactory adds 3 red drops and 2 blue drops of coloring to white paint to make each pint of purple paint. the factory will make 50 gallons of the purple paint.how many drops of red and blue coloring will the factory need in the 50 gallon batch of purple paint.

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

Which expression is equivalent to 3^3 + 2^2?