Kevin has a rabbit, a ferret , a gerbil, and turtle. he feeds them in a different order each day. in how many different orders can kevin feed his pets?

Can someone me with my hwplz(only the circled ones)

Diane owes $387 to her brother. if she debits her bank account $161.25 a month to pay him back, how many months will it take her to pay off the debt?

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