8x2 +1
what is the coefficient in the expression

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?

Annabelle's homework is 75% it took her three hours how long should she estimate it will take her to complete her homework.

Write the equation in general quadratic form: plz !