Answer:
x = -10/3
Step-by-step explanation:
−4(x−5)=−7x+10
Use the distributive property to multiply −4 by x−5.
−4x+20=−7x+10
Add 7x to both sides.
−4x+20+7x=10
Combine −4x and 7x to get 3x.
3x+20=10
Subtract 20 from 10 to get −10.
3x=−10
Divide both sides by 3.
x = -10/3
 
        
             
        
        
        
Answer:
479001600
Step-by-step explanation:
equation: 12!
12!=479001600
 
        
                    
             
        
        
        
So I’ll do question 3. So normally you see f(x)= something plus x (something like that) you see it as a function of x. 
So that notation of f(-1) means the function of -1. Which means you need to sub in -1 for x. 
f(x)=-5x+5
f(-1)=-5(-1)+5
Negative times a negative is a positive 
f(-1)=5+5
f(-1)=10
        
             
        
        
        
Melissa will need 1.5 gallons of blue paint for each gallon of yellow paint.