Translate this algebraic phrase into an algebraic expression. "4 less than the height"

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 jamie pay at the end?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16

X+y=-4 x-y=2 use elimination with adding and subtraction