Please help me I will mark brain-list

Answer:
q12 is 8
q13 is 81
Step-by-step explanation:
100*6 =600 / 75 = 8
90*72 = 6480 / 80 = 81
Answer:
[tex]x=8 , w=106.[/tex]
Step-by-step explanation:
To find this answer, it is quite simple. This is because you use to cross multiply rule in order to solve the problem so you multiply
[tex]100*6, 75*x[/tex] and you get 600=75x. Then you solve the equation like normal. Same thing for the second equation 90*72 and 80*w you will get 6480=80w. And then solve the equation from there. I hope this helps :)))
Pls mark brainliest