could someone lend me a hand with this, and a small explanation and how to do it? Its my last question for my hw :(

Haley buys 9 pounds of apples for $3. how many pounds of apples can she buy for $1?

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 you prove that ∆wxz is congruent to ∆yzx, which general statement best describes what you have proved?