E^-2n=45 how to solve this exponential equation?

Perform the required operations on the following functions given: f(x)= 3-x; g(x)= -2x find g[f(x)]

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

If p(a) = 0.70 and p(b) = 0.20, then a and b are independent events if