The mistake Shawna made was in her answer the 54 repeats so the bar should be over the .54 not the .545
1.
(x/2) - 7 = 11
2.
2x + 7 = 27
3.
2x - 5 = 25
Hope this helped!! (:
81 because 81 is a perfect square and 27 times 3 =81
Answer:
yes
Step-by-step explanation:
15.3-7.9=7.4
