3different problems, sorry these type confuse me f(x) = 5x - 1 and g(x) = 6x, find f(g(x)) f(x) = 5x - 1 and g(x) = 6x, find g(f(x)) f(x) = 5x - 1 and g(x) = 6x, find g(f(2))

If 1 is divided by the sum of y& 4.the result is equal to 3 divided by 4, find the value of m

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin.how many doctors use brand x aspirin