Help me please, Algebra

If you shift the linear parent function, f(x)=x, up 13 units, what is the equation of the new function?

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

Solve -2(4y + 6) = 52. 5 -5 8 -8 and !