wait i will take screen shot please bran-list
Draw a tape diagram and make 18 sections on the diagram. Shade in the first section and that’s 1/18
The answer is A. 88.8 cm2
Work:
74 x 2 = 148
14.8 = 29.6
Add them = 177.6
then 
Randomly assigned group. the art class isn't random and only consists of a select type of people--it is not a representative sample; maybe more left handed people enjoy art than do right handed people! therefore, even though the randomly assigned group is smaller, it is the better estimate.
Like terms will have the exact same variables and exponents...
like term are : 2xy , xy , 1/2xy