Identify f as being linear, quadratic, or neither. Iff is quadratic, identify the leading coefficient a and evaluate f(-5). 5
f(x)=
x²-2

Can somebody me out with this question

You have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint? you have a 32-foot fence around a square garden. there are 4 equal sections. you paint 13 of one section of the fence. what fraction of the fence did you paint?

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?