What is the result of subtracting the second equation from the first

What is the solution of sqrt x+2-15=-3

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

Write the expression as a single natural logarithm. 2 in a - 4 in y