Hi there,

I didn't succeed to put a clear equation and relation with sell price, cost purchase, total revenue...

Could you explain a simple way to resolve it and the concept

During a one-day sale, a store sold each sweater of cer tain type for 30$ more than the store's cost to purchase each sweater. How many of these sweaters were sold during the sale ?

(1) During the sale, the total revenue from the sale of these sweaters was $270

(2) During the sale, the store sold each of these sweaters at a price that was 50 percent greather than the store's cost to purchase each sweater.


Answer C