One horsepower is equal to 746 watts and 1 watt is equal to 3.4 btu/hr. if 2 horsepower equals 1100 foot-pound/sec, which of the following is closest to the number of btu/hr in 1 foot-pound/sec?
4.61
2.51
0.40
0.22

Polygon mnopq is dilated by a scale factor of 0.8 with the origin as the center of dilation, resulting in the image m′n′o′p′q′. the coordinates of point m are (2, 4), and the coordinates of point n are (3, 5). the slope of is .

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?

How do you solving the solution of each system using elimination?