Hugo is buying DVDs that cost $15 each. He has a coupon for $5 off his total purchase. Write an equation to find the c the total amount he will spend on any number of DVDs d. Then use the equation to find the amount he will spend if he buys 6 DVDs.
15 times 6 is 90. This is how much money he spends on 6 DVDs if they're all $15. 90 subtracted by 5 (remember - he gets $5 off his entire purchase, not just each individual DVD) would be 85!
