Given the formula S = 1/2 N (A+l) solve for n

The line y = x + passes through (−3, 7) and is parallel to y = 4x − 1.

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

What are the coordinates of the midpoint of ab? ,1/2) /2,-1) ,-3/2) /2,-2)