E these word problems. Check your answers. A man had paid $175.50 in interest at the end of three years. How much had he borrowed at 9% per year?
(The problem gives you the interest, rate, and time. You need to find the principal.)

Tabby sells clothing at a retail store, and she earns a commission of 6.25% on all items she sells. last week she sold a pair of jeans for $32.50, a skirt for $18.95, and 2 blouses for $14.95 each. what was tabby's total commission? a $4.15 b $5.08 c $81.35 d $348.60

If the value of cos330°is√3/2 then find cos 165°.

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me