Show work and you! a sporting goods store marks up the cost s of soccer balls by 250%. write an expression that represents the retail cost of the soccer balls. the store buys soccer balls for $5.00 each. what is the retail price of the soccer balls

new price = cost + cost* percentage increase

250 percent = 2.5 as a decimal ( 250% = 250/100 = 2.5)

new price = cost + cost * 2.5

factor out cost

new price = cost(1+2.5)

new price = cost(3.5)

substitute the retail price (or cost)

new price = 5(3.5)

new price = 17.5

I am assuming the retail price is the selling price or the new price

it would open into a square depending on the type of envelope i’m not sure about the second part