I NEED THE ANSWER ASAP PLZ

What are the domain and range of the function? f(x) = -4 (sqrt)x

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0

Jamie went to home depot.she bought 25 bags of soil that cost $9 per bag.she bought 15 pots at $8 each,and she bought 23 bags of pebbles at $15 each.she used a coupon that gave her $5 off for every 100 dollars she spent.how much did jame pay at the end?