What brand is better ? brand a: $2.50 brand b: 35 for $3.25 brand c: 50 for $5.25 brand d: 100 for $10.00

The probability of winning something on a single play at a slot machine is 0.11. after 4 plays on the slot machine, what is the probability of winning at least once

What is the solution to the equation 9^(x+1) =27

An architect is designing a water fountain for a park she uses the given function to model the water jet flowing from the fountain nozzles where h(x) gives the height of the water jugs in feet x feet from the starting point h(x)=-1/20x+x+15