Solve the system of equations by elimination.
+y=4
y= 2x + 6

The spring the owner of a sporting good store decreases the price of winter gloves from $10 to $8 each increases the price of swimming goggles from $8 to $10 without doing the math you think the percent decrease in the price of the gloves the same as the percent increase of the goggles explain why or why not

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

Find the cosine function that is represented in the graph.