When using the quadratic formula if there is no b value then do you say b is 1 or 0

Will used 20 colored tiles to make a design in art class. 5/20 of his tiles were red. what is an equivalent fraction for the red tiles?

One card is dealt from a 52 card deck. find the probability that the dealt card is a 4 or a black 7

That table shows measurements (in invhes$ from cubes with different side lengths. which pairs of variables have a linear relationship? check all that apply