4. Kelsey obtains a loan with simple interest to buy a used car that costs $12,500. If Kelsey pays $850 in interest during the five-year term of the loan what was the rate of simple
Interest? (Hint: 1 = PRD

Nick has box brads. he uses 4 brads for the first project. nick let’s b represent the original number of brads and finds that for the second project, the number of brads he uses is 8 more than half the difference of b and 4. write an expression to represent the number of brads he uses for the second project.