When the r2 of a regression equation is very high, it indicates tha?

How many different ways can you make change for $.50 using only nickels,dimes, and quarters?

Through: (-3,-3) parallel to y= 7/3x+3

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?