In a school there are 880 pupils if 3 /5 are boys how many are girls

Place the following steps in order to complete the square and solve the quadratic equation,

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

At your job you're paid $50 per week plus $3 per sale at least how many saled do you need to make in order to have over $250