You notice a hot air balloon descending. The elevation h (in feet) of the balloon is modeled by the function h(x)=−12x+300, where x is the time (in seconds) since you first noticed the hot air balloon.

What is the value of x in the figure below? if necessary, round your answer to the nearest tenth of a unit. 12 d 4 b оа. 3.1 ов. 6.9 ос. 4 od. 12

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

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?