Ariana went shopping for a new video game. The listed price of the video game was $36 but the price with tax came to $37.08.Find the percent sales tax

How can you find the conditional probability of a given b as the fraction of b’s outcomes that also belong to a, and interpret the answer in terms of the model? i just need a good explanation

Restrictions on f(x) = 1/x+5 and g(x) = x-2

Two cyclists 84 miles apart start riding toward each other at the samen time. one cycles 2 times as fast as the other. if they meet 4 hours later what is the speed (in miles) of the faster cyclists