No, because since each pennant cost 18$ then 7 pennants should cost 126$. So for Ms. Lee to pay 146$ is not reasonable.
Answer:
6/4x + -7/4 also know as 1 2/4x - 1 3/4 which simplified even further is
1 1/2x - 1 3/4
Use the distributive property to multiply 1/4 by 3x−7.
Multiply 1/4 and 3 to get 3/4
Multiply 1/4 and −7 to get -7/4
Combine 3/4x and 3/4x to get 6/4x or 3/2x.