In 1976 the population density of a country was 55 people per square mile, and in 2001 it was 75 people per square mile. use a linear function to estimate when the population density reached 90 people per square mile. the population density will reach 90 people per square mile in the year nothing. (round to the nearest whole number as needed.)

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?

With number 11 ( show how you got the answer)

Aline has a slope of . which ordered pairs could be points on a parallel line? check all that apply. (-8, 8) and (2, 2) (-5, -1) and (0, 2) (-3, 6) and (6, -9) (-2, 1) and (3,-2) (0, 2) and (5,5)