Which of the following are exterior angles? check all that apply. asap

Can someone check my answer? you : )

What is the 12th term of b(n)=-4-2(n-1)

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?