Solve a math problem

Maria is planning a party. Nancy, her friend, suggests that she should order 3 pizzas for every 7 people. If she is expecting 21 people at the party, how many pizzas should she order? A. 42 B. 9 C. 49 D. 21

3x+2y=0 x-5y=17 Solving system using elimination

Melina's bus runs every 20 minutes if she arrives at her bus stop at a random time what is the probability that she will have to wait at least five minutes for the bus if it is running on schedule

Function 1: f (x) = 2x2 - 8x + 1 Function 2: x g (x) -2 2 -1 - 3 0 2 1 17 Which function has the least minimum value and what are its coordinates?

What is 5 + (-4) + 12.65 O

What is Y squared plus 5Y plus 2Y squared minus 4Y

What does a computer do when it's hungry

Brandie is trying to decide between two cell phones. One is free with a 2-year contract, but she will have to pay the sales tax of 8% on the original price$399 and the monthly charge is $10 more than she currently pays.

If the length of side a is 16 centimeters, the length of side b is 10 centimeters, and m = 42°, what is the measure of? Round your answer to two decimal places.

Solve for y. 18y - 6 = - 30