Need

1.the graph below shows the solution to a system of inequalities:

which of the following inequalities is modeled by the graph?
5x + 4y ≥ 15; y ≥
5x - 4y ≥ 15; y ≥ 0
5x + 4y ≤ 15; y ≥ 0
-5x - 4y ≥ 15; y ≥ 0

Which values for a and b will create infinitely many solutions for this system of equations? ax-y=8 2x+y=b

55 bridesmaids want to make 325 325 decorations for a wedding. each decoration takes about 212 2 1 2 minutes to make. which response gives the best estimate for the amount of time each bridesmaid will spend making decorations?

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