What is the ratio and rate of 5 cell phones for 30 dollars

Find the quotient. 50a2 – 98b2 -5a +7b

For which of the following counts would a binomial probability model not be reasonable? a)the number of people in a classroom born in januaryb) the number of people in a classroom with red hair c) the number of people admitted to a hospital in a day with a particular disease d) the number of heart beats in a one-minute perio.

If f(x) =3x-2 and g(x) =2x+1 fins (f+ g) (x)