Hello,
Please, see the attached file.
Thanks.
This site may help you
http://www.cpalms.org/Public/PreviewResourceAssessment/Preview/65260
1. 4y – y and 4 because “4y – y = 4.”
not equivalent because we don't know what y is
2.not equivalent
2x + 7x and 9x because “5 + 3 = 8.”
Federal and state taxes are withheld from employee pay
The top graph
hope this help