Answer:
7.5 Hours (This is questioned weird though so it could be different)
Step-by-step explanation:
Just add 9 to 6 and you'll have 15 divided by two equals 7.5.
Or since it takes 6 hours for both, multiply by 2 equals 12
Algebra

Divide everything by two, or times everything by 1/2.

This is as far as you could go due to no like-terms.
2 kg. Each liter is equal to 1 kg
Answer:
-69.91 to 2 d.p
Step-by-step explanation:
i think i am not sure
Answer:
C. all whole numbers
Step-by-step explanation:
Well Roberts can’t have a negative income and due to the number of violins being whole numbers, it is impossible to have 2.273 violins.
Hence, the annual income can only be whole numbers