Consider the system y=3x+5 y=ax+ b

When y’all answer can y’all explain too !

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

Find two numbers if their sum is 91 and the ratio is 6: 7?