Solve the system of equations by elimination.

3x+4y=31

2x-4y=-6

What is the exterior angle measure of a regular 18-gon

A ball player gets 11 hits in 40 times at bat. how many hits would you predict in 1000 times at bat

Solve for x. - 10x = - 210 x = - 200 x = - 21 x = 21 x = 1/21

There are three cards. One is green on both sides, the second is red on both sides and the third is red on one side and green on the other. We choose a card at random and we see one side (also chosen at random).

What is the 100th term of this sequence? 14.5, 11, 7.5, 4, 0.5, ...

What does 7 minus the product of 2 and x in algebra?

How do I show an expression that shows how to cut a ribbon that's 1'1/4feet into equal sizes pieces

What is 54 divided by 4806

Betsy is saving to buy a bird cage. She saves $1 dollar the first week, $3 the second week

Write the standard number 393,200 in scientific notation.