For the school’s sports day, a group of students prepared, 21 1/2 liters of lemonade. At the end of the day, they had 258 liters left over. How many liters of lemonade were sold?

[10 points, algebra 2]according to my answer key the restrictions are -1 and 4. but why not positive 1?

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

10 points? ? +++ me asap gabriella uses the current exchange rate to write the function, h(x), where x is the number of u.s. dollars and h(x) is the number of euros, the european union currency. she checks the rate and finds that h(100) = 7.5. which statement best describes what h(100) = 75 signifies? a) gabriella averages 7.5 u.s. dollars for every 100 euros. b) gabriella averages 100 u.s. dollars for every 25 euros. c) gabriella can exchange 75 u.s. dollars for 100 euros. d) gabriella can exchange 100 u.s. dollars for 75 euros.