PLEASE I NEED A REFRENCE FOR THIS POST I have provided at least three in the list.

Let's choose the function: Weekly salary is a function of the hourly pay rate and the number of hours worked.

Example: John works as a part-time employee and earns $15 per hour. Last week, he worked for 25 hours. Let's evaluate the function to find his weekly salary.

Input: Hourly pay rate = $15, Number of hours worked = 25

Weekly salary = Hourly pay rate * Number of hours worked Weekly salary = $15 * 25 Weekly salary = $375

Therefore, John's weekly salary is $375 based on the given inputs of $15 per hour and 25 hours worked.

Compound interest is a function of initial investment, interest rate, and time.

Example: Suppose you invest $5000 in a savings account with an annual interest rate of 5%. Let's evaluate the function to calculate the compound interest after 3 years.

Input: Initial investment (P) = $5000 Interest rate (r) = 5% = 0.05 (decimal form) Time (t) = 3 years

Compound interest formula: A = P * (1 + r)^t

Substituting the values: A = 5000 * (1 + 0.05)^3 A = 5000 * (1.05)^3 A = 5000 * 1.157625 A = 5788.13

The compound interest after 3 years would be $5788.13.

The height of a tree is a function of its age.

Example: A maple tree is known to grow at a rate of 2 feet per year. Let's evaluate the function to find the height of the maple tree after 10 years.

Input: Age of the tree = 10 years

Height of the tree = Growth rate * Age of the tree Height of the tree = 2 feet/year * 10 years Height of the tree = 20 feet

Therefore, after 10 years, the height of the maple tree would be 20 feet based on the given growth rate of 2 feet per year.