Which expressions represent this model?
Check all that apply.
4 + 5
4(5)
20
5(4)
5(5)

What are “like terms”? why can we only add like terms?

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?

Is a square always, sometimes, or never a parallelogram