1. to calculate discretionary money, you
a. calculate the difference between your gross pay and net income
b. calculate the difference between your net income and fixed expenses
c. calculate the difference between your gross pay and fixed expenses
d. calculate the sum of your net income and fixed expenses

option B

Step-by-step explanation:

To calculate discretionary money, you calculate the difference between your net income and fixed expenses.

Discretionary money is the left with an individual after paying taxes, personal expenses such food, shelter and clothing, etc. The left money can be used for saving, investing, etc. it purely depends upon individual discretion.

hence Option B is correct

56

step-by-step explanation:

(b) 240

step-by-step explanation:

first, we use the pythagorean formula using the given side lengths to find x. then we use x to find the side lengths. then we add the side lengths to find the perimeter.

pythagorean theorem formula:

a^2 + b^2 = c^2

(x - 20)^2 + (x - 40)^2 = x^2

x^2 - 40x + 400 + x^2 - 80x + 1600 = x^2

x^2 -120x + 2000 = 0

(x - 100)(x - 20) = 0

x - 100 = 0 or x - 20 = 0

x = 100 or x = 20

we see that the solution x = 20 must be discarded because it will give a negative side length and a side length of 0. the only valid solution is x = 100.

perimeter = sum of the lengths of the sides

perimeter = x + x - 20 + x - 40

perimeter = 3x - 60

replace x with 100.

perimeter = 3(100) - 60

perimeter = 300 - 60

perimeter = 240