Is this set closed or not closed under the operation? Negative integers under multiplication

What is 800 as a product of its prime factor

Simplify the radical expression 20 + √ 288 - 8

If one measurement of a golden rectangle is 5.4 inches, which number could be the other measurement? a. 3.337 b. 7.018 c. 1.618 d. 3.782

What is 9/16 as a percent? What is it rounded to the nearest hundredth

The function y = 10 x + 190 represents the relationship of the given data where x represents fat, in grams, and y represents calories. How many calories would there be in a snack with 35 grams of fat?

Ranjit is journeying by foot and on horseback to a remote place. She can travel 3 miles in an hour on foot or 7 miles in an hour on horseback. After 10 hours, she has traveled 46 miles. How many hours has she traveled on foot and on horse

In Exercise, expand the logarithmic expression. ln x/x + 1

MR Husted has a wooden parallelogram which has a height of 4 centimeters and a base of 11 centimeters. ms Henningsen also has a parallelogram which has a height of 7 centimeters and a base of. 15 meters.

David is raising money for a school trip by selling packs of cookies and candy bars. The price of each pack of cookies is $1.50 and the price of each candy bar is $1. Yesterday David made $15.50 and sold 2 more packs of cookies than candy bars.

What when multiplied is 5 but when added is - 11