At a shop, the ratio of union to non-union workers is 7 to 3. If there are 18 nonunion workers at the shop, how many union workers are there

(write as unit rate) 12 meters in 28 seconds

Solve |2x - 5| = 4 if anyone could , that would be great

Use the discriminant to describe the roots of each equation. then select the best description. 2m2 + 3 = m double root real and rational roots real and irrational roots non-real roots