Me on this plz i dont know what to do

What is the measure of angle tvu shown in the diagram below

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

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?