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

the answer is 489

step-by-step explanation:

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!