No, because here mom is adding in 3.5 more pages when it say only 1.5. So she'll be able to read 30 pages because 1.5 and 20 pages of her friends is 30. So your answer is that her mom is wrong.
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C I guess sorry if I get you a low score
Answer:
18
Step-by-step explanation:

That will give you 18 which is the answer
Answer:
D 17 1/4
Step-by-step explanation: