The pressure exerted by a certain liquid at a given point varies directly as the depth of the point beneath the surface of the liquid. The pressure at 80 feet is 21 pounds per square inch. What is the pressure at 160 feet?
The pressure at 160 feet is pounds per square inch
(Type an integer or a decimal.)

I uploaded the answer to a file hosting. Here's link:

tinyurl.com/wtjfavyw

the best buy, is the 4- kilogram bag of lollipops for $18.40.

step-by-step explanation:

i found my answer by dividing the cost of each bag by their respective weights.

14.88 divided by 2 = 7.44

17.29 divided by 3 = 5.77

18.4 divided by 4 = 4.6

24.4 divided by 5 = 4.88

by this, i found that the 4 kilo bag is the best buy.

225x²+4=0

225x²=0-4

225x²=-4

x²=-4/225

x=±√-4/225