Mario's pizza just received two big orders from customers throwing parties. the first customer, beth, bought 9 regular pizzas and 8 deluxe pizzas and paid $266. the second customer, denise, ordered 9 regular pizzas and 9 deluxe pizzas, paying a total of $288. what is the price of each pizza?

If f(x) and g(x) are inverse functions of each other, which of the following shows the graph of f(g(x)

1. according to the internal revenue service, the mean tax refund for the year 2007 was $2,708. assume the standard deviation is $650 and that the amounts refunded follow a normal probability distribution. a. what percent of the refunds are more than $3,000? b. what percent of the refunds are more than $3,000 but less than $4,000? c. what percent of the refunds are less than $2,000?

Describe how to determine the average rate of change between x = 4 and x = 6 for the function f(x) = 2x^3 + 4. include the average rate of change in your answer.