Answer:
61
Step-by-step explanation:
4 × (8 + 5) + 9
Parentheses first
4 × (13) + 9
Then multiply
52 +9
Then add
61
Answer:
Distance = 
Step-by-step explanation:
We will use distance formula shown below to solve this:
Distance Formula: 
Where
x_1 = 2a + 2
y_1 = 2b
x_2 = 2b+2
y_2 = 2a
Substituting, we solve for the expression for distance:

This is the expression in terms of a, and b, given a > b
I believe it would be 1 aka F