Can someone me how to solve this question:
a fisheye lens has a minimum focus range of 13.5 centimeters. if 1 centimeter is equal in
length to about 0.39 inch, what is the minimum focus range of the lens in feet?

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?

What is the missing statement in step 4? ? rts ? ? vtu and ? rtu ? ? vts ? rts ? ? rvs and ? rtu ? ? stv ? vrs ? ? vru and ? usr ? ? usv ? vur ? ? vus and ? uvs ? ? sru

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.