Is this a good app for a college student I’m 55 and returning to college after 14years and I’m taking Pre-Med college math 110 and 155

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

Identify the expression equivalent to 4(x + x + 7) − 2x + 8 − 4 by substituting x = 1 and x = 2.

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.