13. Solve the below system using elimination:
6x+4y=15
4x+10y=21

Tom had a total of $220 and he spent $35 on a basketball ticket . what percent of his money did he have left?

What is the range of the relation in the table below? x y –2 0 –1 2 0 4 1 2 2 0

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.