John has a part-time job delivering pizza. He earns a base salary of $5.15 per hour and his average tip for delivering pizza is 11% of the price of the pizza. How much will he earn if he delivers $452 worth of pizza during a 6-hour shift? A. $30.90
B. $34.30
C. 49.72
D. 80.62

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+1 and f^-1=x-1/3, then f^-1(7)=

Afarm that has 4 x 10^2 acres has 1.2 x 10^5 cattle. what is the average number of cattle per acre? write the answer in scientific notation. answere asap