Find 0.5 of 60 and 130%of 80 need help badly

How do you divide 9/4 divided by 10/3

Solve the equation using the given values: x= -2.5; y= -7.51. 2xy + 2x²

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.