1. Find the simple interest for $800 invested at 3.2% for 4 years. 2. Suppose Felino deposited $1500 in the bank for 3 years. He makes $112.50 in simple interest at the end of the 3 years. Find the annual interest rate.
3. What is the total amount of money in an account where $4000 is invested at an interest rate of 4% compounded annually after 5 years?

Atrucker had a load of grain containing 2 tons. she unloaded 1 ton and 1,200 pounds at the warehouse. how much grain does she still have left on the truck?

Cameron indoor stadium at duke university is one of the most revered sites in all of college basketball, as well as in all of sports period. duke’s men’s and women’s basketball programs have attained quite a few wins in the building over the last seventy years. cameron indoor stadium is capable of seating 9,460 people. for each game, the amount of money that the duke blue devils’ athletic program brings in as revenue is a function of the number of people in attendance. if each ticket costs $45.50, find the domain and range of this function.

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square