In sean's fish tank there are 6 times as many goldfish as guppies. there are a total of 21 fish in the tank. how many more goldfish are there than guppies?

What is the vertical asymptotes of the function f(x)=x-2/x*2-3x-4

Tan198=asin164=? how to solve this? ?

Margie is practicing for an upcoming tennis tournament. her first serve is good 20 out of 30 times on average. margie wants to know the estimated probability that her first serve will be good at least four of the next six times she serves. how could she design a simulation for this scenario?