Which choice shows 50*36*2 rewritten correctly using the commutative property and then simplified correctly? select one: a. 50*6*6*2=300*6*2=1,800*2=3,600 b. 50*2*36=100*36=3,600 c. 50*6*6*2=300*6=1,800 d. 50*2*36=1,000*36=36,000

The answer is B.

The commutative property enables you to switch around the numbers in addition or multiplication. B does this correctly and simplifies the answer correctly, giving you 1,800.

You need to make an inequality. You know 5 pounds will serve 14 people but you don't know how much you need to serve 49 people so you need to set up the equation  . You then cross multiply to get . Finally you divide 14 on both sides to get x=17.5 lbs of pasta salad