Answer:
1 5/7 hours.
Step-by-step explanation:
1/3+1/4 = 7/12
1/7/12= 1.714 hrs
2/21 * 7/8
14/168
divide top and bottom by 14
1/12
there are 6 terms! hope this helped
the answer for this question is c
15 dollers or 22.5%
thank you i hope this helps