Joan waters her plants with 25 1/2 gallons of water. With a new irrigation system in place, she uses 19 3/4 gallons of water each day. How many gallons of water does she save in a 30-day period with the irrigation system?

Eric has challenged himself to walk 24,000 steps in 4 days. if eric walks the same number of steps each day, which function represents the number of steps eric still needs to walk to reach his goal with respect to the number of days since he started his challenge? a. y = 8,000x − 24,000 b. y = -8,000x + 24,000 c. y = 6,000x − 24,000 d. y = -6,000x + 24,000