Two rooms in a house are similar rectangles. room a is 12 ft by 16 ft. the longer side of room b is 4 ft shorter than twice the length of the shorter side of room a. what are the dimensions of room b?

Can someone check if i did this correct. it’s number 4 if you’re wondering.

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?

Let f(x) = 5/x and g(x)=2x2+5x. what two numbers are not in the domain of f o g