Aveterinarian purchases some medication for $19.50 and wants a 2 dollar profit. what is the percent markup on this medication?

Describe the 2 algebraic methods you can use to find the zeros of the function f(t)=-16t^2+400.

If f(x)= sqrt4x+9+2, which inequality can be used to find the domain of f(x)?

Atrain leaves little? rock, arkansas, and travels north at 90 kilometers per hour. another train leaves at the same time and travels south at 80 kilometers per hour. how long will it take before they are 680 kilometers? apart?