The number nine added to the product of 10 and -4 is what number

The perimeter of a rectangle is greater than or equal to 74 meters. if the length is 25 meters, the minimum width of the rectangle is meters.

You deposit $5000 each year into an account earning 3% interest compounded annually. how much will you have in the account in 30 years?

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?