PLEASEEE HURRYYY -WILL MARK BRAINLIEST please solve for both X and Y I will mark u BRAINLIEST if you do it fast

Ill mark the brainliest if you me with the these three questions 7,8,9

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

How long must $542 be invested at a rate of 7% to earn $303.52 in interest? in a easier way