Tuesday
March 31, 2015

Homework Help: math

Posted by thomas on Wednesday, April 9, 2014 at 11:42am.

HHow many pupils are there in a class if two pupils remain after four rows of seats are filled, and nine pupils remain after three rows of seats are filled?

a. 21
b. 22
c. 28
d. 30
e. 32

please answer and explain

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