Levi walks dogs from 8am to 3 pm He walks 2 dogs per hour. How many dogs he walk in a day?

What is the range? can’t seem to find it out

How do i put 3(x+7) in distributive property

The water company charges a residential customer $41 for the first 3,000 gallons of water used and $1 for every 200 gallons used over 3000 gallons. if the water bill was $58 how many gallons of water were usedanswersa 3400 gallonsb 6000 gallonsc 6400 gallons d 7000 gallons