Lolly and Joey ordered dinner. They leave a 18% tip. Let d represent the cost of the dinner and t represent the total cost. Which equation below CAN NOT be used to represent how to find the total ?
A) 1.18d = t
B) (1 + 0.18)d = t
C) 0.18d + d = t
D) 0.18d = t
Kyle has a coupon for 20% off or $5 off. If he purchases an item that is $34.13, which one would be better ?
A) 20% off
B) $5 off