Answer: 84
Step-by-step explanation: 7 Times 12 because each foot is 12 inches
Reduce each ratio to its minimum expression to find if they are equal.
35:28

10:8

Since both ratios reduce to 5:4, they are equivalent.
Another way to check a:b is equivalent to c:d, is that a*d = b*c
In this case, this will be true if 35 times 8 is equal to 10 times 28:

Since both products are equal, then the ratios are equivalent.
When there is only one variable, the degree is the highest exponent.
Degrees of each term from L to R: 7, 4, 3, 11, 6, 7
The biggest of these is 11.
Final answer: 11