What two numbers add to 19 and multiply to 60

Zoe placed colored blocks on a scale in science class. each block weighed 0.8 ounces. the total weight of all the colored blocks was 12.8 ounces. how many blocks did zoe place on the scale? write and solve an equation to find the answer.

What is the greater volume 72 quarts or 23 gallons

E. which of the following is not a possible probability? a. 25/100 b. 1.25 c. 1 d. 0