1. ① 5(x – 7) = 25 ② -8 – 3y + 9y = 10 ③ 8x – 6 = 5(x + 6) ④ What percent is 16 of 50? ⑤ 24 is 26% of what number?

2.  Copy the following vocabulary term into your notebook:  Function form: An equation that is written so that y is a function of x. ▪ SOLVE FOR y ▪ GET y BY ITSELF

3.  Solve the formula for the time t.  Use the rewritten formula to find the time it takes to earn $100 interest on $1000 at a rate of 5%.

4.  Solve the equations for the initial investment P.  Use the rewritten formula to find the investment P needed to earn $400 interest at a rate of 4% over 4 years.

5.  Solve for the width w.  Use the rewritten formula to find the width of this rectangle. 27 cm A = 351 cm 2

6.  Solve for the length l.  Use the rewritten formula to find the length of this rectangle. 2.4 ftP = 19.2 ft