Answer:
22. the answer is 27n^2 m^5 s^6 / 32
23. the answer is -7
Step-by-step explanation:
Nope! If they were proportional, one would be able to be reduced to the other.
It's like the (however clichéd) example of pie slices! If you cut two pies into 8 and 20 pieces, three pieces of the pie sliced into eight pieces will not be the same as seven pieces of the pie sliced into twenty!
72 hours because if you keep counting up by NInes 8 times you will hit 72