(3.49+4.71)1.80=cost
(8.2)1.80=cost
14.76=cost
Luis spends $14.76 all together
Answer:
<u>2</u><u>7</u><u> </u><u>+</u><u> </u><u>7</u><u>m</u>
Step-by-step explanation:

open the bracket:

5^2 = 25
3^0 = 1 (anything that is exponented by 0 is 1)
25 - 1 = 24
24 is your answer
hope this helps
Answer:
4^9
Step-by-step explanation: