What is the order of 2/3, -0.6, 0.65, and 4/5 from least to greatest?

The amount of data left on the cell phone six gb for 81.5 gb of data is used how much data is available at the beginning of the cycle

How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?

Miranda drove her car 112 miles on a 4 gallons of gas and 182 miles on 6.5 gallons. how many gallons would she need to drive 420 miles?