If you can buy 7 oranges for $14.28 how much would one orange cost?

Element x decays radioactively with a half life of 8 minutes. if there are 450 grams of element x, how long, to the nearest tenth of a minute, would it take the element to decay to 37 grams?

Find the zeros of the function. write the smaller solution first, and the larger solution second f(x)= (x+6)^2-49

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?