The perimeter of macy's rectangular room is 40 feet. two sides of the room measure 8 feet. how long are the other two sides?

A. 127 cm^2 b. 144.5 cm^2 c. 172 cm^2 d. 50 cm^2

How are algebraic expressions evaluated using substitution?

The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?