The Smiths invested $14,000, part at 3% simple interest and the rest at 4% simple interest for a period of one year. if the total interest earned was $460, how much was invested at each rate?

Answer 1

One gallon of paint covers an area of 400 square feet. Write an expression that can be
used to calculate the number of gallons of paint the farmer will need to buy to paint the
shaded regions of the storage building and the shaded region of the grain silo.