In the function f(x)=20x^2-5 which is not a factor a) x+1 b)2x-1 c)5 d)2x+1

Do u just plot the numbers on the graph like (1,

How do i put 3(x+7) in distributive property

This summer the number of tourists in salem increased 4.5% from last years total of 426000. how many more tourists came to salem this summer