Which shows the domain and range of these
functions?
Domain:(-∞, ∞) Range: (-∞, ∞)
Domain: (0, ∞) Range:(-∞, 0)
Domain:(-∞, ∞) Range: (0, ∞)

Acircular city park has a sidewalk directly through the middle that is 111 - feet long. if each bag of fertilizer covers 50 square feet, then determine how many bags of fertilizers the parks and recreation department needs to use to cover the circular park. ignore all the sidewalks around and through the park.

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

The u-drive rent-a-truck company plans to spend $13 million on 320 new vehicles. each commercial van will cost $25 comma 000, each small truck $50 comma 000, and each large truck  $80 comma 000. past experience shows that they need twice as many vans as small trucks. how many of each type of vehicle can they buy?