Answer with Step-by-step explanation:
The basic water balance dictates that "Amount of water flowing into the basin should be equal to the amount of water flowing out of it".
Mathematically

where
P = precipitation
I = Infiltration losses in the basin
E = Evapotranspiration
Q = is outflow from the basin
Applying the given values we get

Part b)
From the above equation we get

The evaporation in cubic meters per year is

If it wants you to solve for b the answer is b = -4/3c + a/3
And if it wants you to solve for C the answer is c = -3/4b + 1/4a
12,548:9( you can’t simplify this ratio)
62,547 divided by 7 = 8,935.28571
5127 divided by 25 = 205.08
This equation has already been factored as far as possible. To find the roots m, first let 2m+3=0 and then solve for m: -3/2. Next, let 4m-3=0 and solve for m.
EXPLANATION
Let's see the facts:
$Sandwiches= 3*$Salads
Bill = $24.92
We can represent this in an equation:
Total Bill = Sandwiches + Salads
Let's call to Sandwiches "x" to Salads "y" and to Bill "B"
Then, the equation will be:
B = x+y = (3*y) + y
Applying distributive property:
24.92 = 3y + y
Adding similar terms:
24.92 = 4y
Dividing both sides by 4:
6.23 = y
Switching:
y=6.23
As we know, y variable represent the salads cost, so:
Answer is $6.23.