Question 1: You just do 400 x 14, and the answer is 5,600.
Question 2: You divide 7,600 by 400, and the answer is 19.
4a-9b=22
substitute b=-2
4a -9(-2) = 22
4a +18 =22
subtract 18 from each side
4a = 4
divide by 4
a =1
Choice C
Since the length is 10 in. You must multiply it by

and then multiply by

. The reason for this is because if you divide ten by 5 it will be 2, then if you divide 2 by 2 it will be 1.
Answer:
B) 10
Step-by-step explanation:
4x+5=45
-5 -5
4x=40
/4 /4
x=10
Hun, these questions look opinionated. They are asking what all you can do and what you need help with.