Step-by-step explanation:
Recall that

so we can write our original equation as
or

Let
so our equation becomes

which gives us two roots:
and
.
This is equivalent to
and 
So multiple the largest eastern city by the smallest eastern city so 305 - 90
Then do the same for the western cities so 503 - 47
Now subtract the results to find the difference in the range of eastern vs western cities
Answer:
192 cows
Step-by-step explanation:
16 cows : 4 sheep
? cows : 48 sheep
48 / 4 = 12
16 x 12 = 192
Answer:
8 red haired and 42 brown haired
Step-by-step explanation:
I chose a random number to start off with (which is 8) and I multiplied it by 5.
8•5=40 and then you have to add 2, so you get 42.
42+8 = 50
The equation would be (5x+2)+x where 'x' is the number of people with red hair.