You are going to play mini golf. a ball machine that contains 2121 green golf balls, 1818 red golf balls, 2323 blue golf balls, and 2323 yellow golf balls, randomly gives you your ball. what is the probability that you end up with a blue golf ball? express your answer as a simplified fraction or a decimal rounded to four decimal places.

The tuition costs, c, for a local community college are modeled by c(h) = 250 + 200h, where h represents the number of credit hours taken. the local state university has tuition costs, s, modeled by the function s(h) = 300 + 180h. how many credit hours will a student have to take for the two tuition costs to be equal? round the answer to the nearest tenth of an hour.

X+ y = 5 ; x - y =3 solve using linear combination

I’m on question 7 it says a covered water tank is in the shape of a cylinder the tank has a 28 inch diameter and a height of 66 inches to the nearest square inch what is the surface area of the water tank