Nellie charges $4.25 for the first hour she baby-sits and $2.75 for each additional hour or part of an hour. How much will she earn for baby-sitting from 7:15 P. M. until 1:30 A. M.?

ok so from 7:15 to 8:15 it cost 4.25

8:15 to 9:15 = 2.75

9:15 to 10:15 = 2.75

10:15 to 11:15 = 2.75

11:15 to 12:15 = 2.75

12:15 to 1:15 = 2.75

1:15 to 1:30 = 1.37

so add 4.25+2.75+2.75+2.75+2.75+2.75+1.37

which equals 19.37

Nellie will earn $19.37 for baby-sitting from 7:15 PM until 1:30 AM

step-by-step explanation:

hope this helps plz mark me as brainiest

step-by-step explanation:

12475909

just sum

10 + 10 = 20