Answer: A
This is simple. Absolute value inequalities can NOT have a negative. For D, the absolute value is not completely simplified. The negative sign will be removed in the process of solving it.
There should be 10 more adults in all three classes together, with a total of 13 adults
price of one message = 1.35 ÷ 9
1.35 ÷ 9 = 0.15
0.15 • 118 = ( 3 ÷ 20 ) • 118
118 • 3 = 354
354 ÷ 20 = 177 ÷ 10 = $17.7 to send 118 messages
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It would be x^5-1 fjjbdbxjwjxjs