Answer:
-7
Step-by-step explanation:
Hope it helped!
Sorry, but this question isn't clear can you restate what you mean
Distributive property
12-3x-13 = 0
Combine like terms
-1-3x = 0
-3x = 1
Divide by -3
x = -1/3
3p : 8s
1p : (8/3)s
So for every one 'p' there is (8/3) 's'
Ratio of p to s is 1 : 8/3
Answer: 105 grams
Step-by-step equation: they each eat 21 grams a day