At the gas station, each liter of gas costs $3, but there's a promotion that for every beverage you purchase you save $0.20 on gas. Is your total savings proportional to the number of beverages you purchase?

Acylinder has volume 45π and radius 3. what is it’s height?

Abarbecue sold 26 hamburgers and hot dogs. hamburgers sell for $3.50 each and hot dogs sell for $2.00 each. if the barbecue made $70 in sales, determine and state the number of hot dogs sold.

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.