What is the final cost of a $21,000 car with a sales tax of 7%?

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 pyramid below was dissected by a horizontal plane which shape describes the pyramid horizontal cross section

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827