Let -5 represent the changes in gas every hour. which expression represents th etotal change in gas after 6 hours

Find the slope of a line given the following two points

It is saturday morning and jeremy has discovered he has a leak coming from the water heater in his attic. since plumbers charge extra to come out on the weekends, jeremy is planning to use buckets to catch the dripping water. he places a bucket under the drip and steps outside to walk the dog. in half an hour the bucket is 1/5 of the way full. what is the rate at which the water is leaking per hour?

Tatiana reads 40 pages of her book every night for x number of nights. write an expression that shows the number of pages she has read