If 2.5 is a root of the equation 2x^2+5x−q=0, what are the possible values of q?

Which is equivalent to 10/12? options: 10/18 5/6 3/12 9/11

Two blends of tea are mixed to make a blend that will be sold at the fair. black tea sells for $2.20 per pound and orange pekoe tea sells for $3.00 per pound. how much of each should be used to obtain a 4lb blend selling for $2.50 per pound?

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11