Geometry 100% correct answer only

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

F(x)=x/2-2 and g(x)=2x^2+x-3 find (f+g)(x)

How much orange juice do you need to make 2 servings of lemony orange slush?