How many seashells did Jennifer give to her younger brother

Evaluate the expression for the given value of the variable 7a - 4a for a =8

Which number produces a rationale number when multiplied by 1/5

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