Answer:
n ≥ 50
Step-by-step explanation:
Total pages = 370
Read pages = 20
Number of days remaining = 7
Reading rate per day = n
7n + 20 ≥ 370
7n ≥ 370 - 20
7n ≥ 350
n ≥ 350/7
n ≥ 50 pages per day for the remaining 7 days
 
        
             
        
        
        
First, multiply. 7x-14-4x+9. Now, add the like terms. 3x-5.
        
                    
             
        
        
        
Answer:
21 is 20% of 105
Step-by-step explanation:
20% * x = 21 
20/100 * x = 21 
x = 21 * 100/20 
x = 105
If you are using a calculator, simply enter 21×100÷20, which will give you the answer.
 
        
                    
             
        
        
        
Answer:
4.8 feet
Step-by-step explanation:
 
        
             
        
        
        
Answer:

Step-by-step explanation:
The complete question is shown in the attachment.
The length of the rectangle is x + 12. The width of the rectangle is x + 3.
Recall that area of a rectangle is 
In terms of x, the area is 
Recall the distributive property of real numbers: 
We apply this property to get:

We expand again to get:

We now simplify to obtain:

The area of the rectangle is 