In December of 2003, the average price for a gallon of regular gas in the United States was $1.50 is the relationship between number of gallons and cost proportional?

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Marlow is comparing the prices of two trucks rental compaines company a charges $3 per hour and an addtional $75 as serivce charges company b charges $2 per hour and an additional $85 as serivce charges

How much dextrose 70% must be mixed with dextrose 5% to prepare 1,000 ml of dextrose 20%?