Which set is closed under multiplication?
select one:
a. {1, 3}
b. {0, 1, 3}
c. {1, 2, 3}
d. none of the sets are closed under multiplication.

If the cost to mail a package is an initial $5 and $0.28 for every pound the total cost to mail a package was $11.27, how much did the package weigh?

An isosceles trapezoid with a perimeter of 42 inches. each of the congruent non parallel sides is 5 inches long, and the trapezoid is 3 inches tall. how long are the two parallel sides? a. 10 in, 22 in b. 16 in, 16 in c. 10 in, 16 in d. 12 in, 20 in

Write the point slope form of the equation of the line passing through the points (-5, 6) and (0.1).