The cost y (in dollars) to rent a pickup truck is proportional to the number x of hours that the pickup truck is rented. it costs $100 to rent the truck for 4 hours. write an equation that represents the cost to rent a pickup truck for x hours.

If 90° < θ < 180° and cotθ = -1/3, then cscθ =

David must install fencing around a lot that is shaped like a right angle. the side of lot that runs east-west is 200 ft long. the side of the lot runs north-south is 125 ft long. calculate how many feet of fencing he will need to surround the entire lot.

Anyone know? will mark brainliest if you're correct!