Find all real zeros of the quadratic equation:
y = x2 + x - 12

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

What is the length of the segment, endpoints of which are intersections of parabolas y=x2? 11 4 x? 7 4 and y=? 7 8 x2+x+ 31 8 ?

Julia bought 7 hats a week later half of all her hats were destroyed in a fire. there are now only 12 hats left with how many did she start