8r and 4r are like terms since they both have an r
also 3s and -3s are also like terms because of the s
Read the introductory paragraph and answer the question in complete sentences.
The community comes alive at night! Schools that once were dark in the evening are now alive with lights and people. The people are adults and the lights are on and the school buildings are open because adults are enrolled in community education classes.
What do you believe the subject will be?
The defenition of a rectangle is that it has 4 angles that measure 90 degrees
ther are infinite legnths and inifinite numbers
intinite side legnths so infinite number of unique rectangles