What integer represents the change in the number of cars between 8am and 9am

The angle of a triangle are given as 6x,(x-3), and (3x+7). find x then find the measures of the angles

Witch represents the inverse of the function f(x)=1/4x-12

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?