Answer: 15m + 5n
Step-by-step explanation:
so, first off, we take the number outside of the parentheses and multiply it by everything that's inside of the parentheses. 
(5)3m + 5(n) 
then, we just multiply all of those together. 
15m + 5n
 
        
             
        
        
        
Answer
18 hours
Step-by-step explanation:
if 10 people spend 15 hours
one person spend 15/10=1.5
so 1.5 × 12=18hours
 
        
             
        
        
        
Answer:
f(x)⁻¹ = (x - 11)²
Step-by-step explanation:
To find the inverse of the function, you need to (1) swap the places of the "x" and "y" variables and then (2) solve for "y". Remember, f(x) is another way of writing "y".
y = √x + 11                                        <----- Original equation
x = √y + 11                                        <----- Swap variables
x - 11 = √y                                         <----- Subtract 11 from both sides
(x - 11)² = (√y)²                                  <----- Square both sides
(x - 11)² = y                                        <----- Simplify
Another way of writing the output of an inverse function is with f(x)⁻¹.
 
        
             
        
        
        
Answer:
I'm gonna need to see the graph, sweetheart.
 
        
                    
             
        
        
        
The answer is f(x) = (x/4) - 3
4/4=1-3=-2