Find the area of the composite figure

What is the volume of a rectangular prism if the length is 10.4 mm the width is 5 mm in the height is 8 mm

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?

1: 4 if the wew 35 surfboards at the beach how many were short boards?