Answer:
Mark has 18 shirts
Given that together they have 140 shirts.
x + 7x - 4 = 140
8x = 140 + 4
8x = 144
x = 144/8
x = 18
Joe has 122 shirts
7x - 4
7 × 18 - 4
126 - 4
= 122
Matt needs to use the side of the straightedge to make parallel lines, and he needs to check that the distance from one line to the other is the same. Annie just needs to be sure that her lines are the same distance apart when doing hers. <span />
84.78
Explanation:
13.5•2=27
27•3.14=84.78
Since 27 times 9 = 243
Therefore, there are 243 cookies in each case
