Before sales tax, the classical music cd cost $15.jan gave the clerk a $20 bill and recieved $4.17 change. what is the rate of sales tax? a.9.5% b.4% c.6.25% d.5.5%

(05.02) mr. morris is going to save money and replace his sailboat's mainsail himself. he must determine the area of the mainsail in order to buy the correct amount of material. calculate the area of the parallelogram to determine how much material should be purchased. be sure to explain how to decompose this shape into rectangles and triangles. describe their dimensions and show your work.