Solve the system using elimination:

1 3x+3y=27

x-37=-11

2 4x-7y=3

x-7y=-15

3 2x+3y=9

x+5y=8

4 3x+2y=17

2x+5y=26

The sum of 2 numbers is 21 and their difference is 5

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A large pizza pie with 15 slices is shared among 6 students. How many full slices of pizza can each student have?

What is the value of a in the given quadratic regression equation? Y=0.01071x^2+0.02214x+2.85743

A train ride covers a distance of 3 miles in 20 minutes what is the speed for the ride in miles per minute?

The square pyramid below has a height of 12 CM and a slant height of 20 cm the square base of the pyramid has side lengths of 32 CM what is the lateral area of the pyramid

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On a biased dice the probability of rolling a 1 is 0.3 the dice is rolled 150 times how may ones do you expect to roll?

Quinton brought 40 cupcakes to school on his birthday. He gave a cupcake to each of the 18 students in Ms. Delmonts class. He also gave a cupcake to each of the 16 students in Mrs Donnelly's class. He also gave a cupcake to Ms.

michael started a savings account and after 3 weeks, he had $500 dollars, and after 7 weeks, he had $900. What is the rate of change of money in his savings account per week?