The answer is b = 3. you subtract 24 from bothe sides and then divide by 2.
We are given ratio 456:8.
The given ratio can be written in fraction form as 
In order to find the rate, we need to divide 456 by 8, because it would give the unit value.
When we divide 456 by 8, we first take multiple of 8 closer to the number 45.
8*6=48 but it's greater than 45, so we would take 8*5 =40.
Subtracting 40 from 45, we get 5.
Getting 6 down, we get 56. Take multiple of 8 upto 56.
8*7= 56.
56 -56=0.
So, on dividing 456 by 8 we got 57.
Therefore, rate is 57 per unit.
Answer:
5,114.6
Step-by-step explanation:
5.1146 x 10^3 means move decimal point 3 to the right to get the answer
The answer is A, not sure about the expression though. Sorry
Expand it, so you will get 9x^2 + 24x + 16