To rent out an event center, you pay a one-time cleaning fee and an hourly fee for the length of your rental. Renting the event center for 4 hours costs a total of $335. Renting the event center for 11 hours costs a total of $825. Find the one-time cleaning fee cost. NOTE: Your answer should be an integer.

The probability that a college student belongs to a health club is 0.3. the probability that a college student lives off-campus is 0.4. the probability that a college student belongs to a health club and lives off-campus is 0.12. find the probability that a college student belongs to a health club or lives off-campus. tip: p(a or b) = p(a) + p(b) - p(a and b) 0.54 0.58 0.70 0.82

How do i do this activity, is appreciated

1. a parachutist is 800 feet above the ground when she opens her parachute. she then falls at a constant rate of 5 feet per second. select the equation that represents this situation. h = -800t + 5 y = -5x + 800 h = 5t - 800 y = 800x + 5 i need