If f(x)=3(x+5)+4/x, what is f(a+2)?

Suppose i flip two identical coins. what is the probability that i get one head and one tail?

Fa bus driver leaves her first stop by 7: 00 a.m., her route will take less than 37 minutes. if she leaves after 7: 00 a.m., she estimates that the same route will take no less than 42 minutes. which inequality represents the time it takes to drive the route, r?

Identify the number 127 as a rational or irrational. explain