Quarters equal 25 cents so multiply 25 x32
        
             
        
        
        
Answer:
(a) √25 rational 
(b) √30 irrational
Step-by-step explanation:
Note : only perfect squares have rational roots
25 = 5² then 25 is a perfect square 
             therefore √25 = 5 is a rational number
30 cannot be written in the form a² where ‘a’ I start a natural number then 30 is not a perfect square 
            Therefore √30 is irrational.
 
        
             
        
        
        
Answer:
b. 0.25
Step-by-step explanation:
40 + 120 = 160
40 / 160
 
        
                    
             
        
        
        
Answer:
<u>5.56 hours</u>
Step-by-step explanation:
Margo read 42 pages in 2.5 hours.
Pete read six fewer pages in the same amount of time.
So, The number of pages that Pete reads = 42 - 6 = 36 pages
So, Pete read 36 pages in 2.5 hours.
let the time needed to read 80 pages x
∴ 36 pages ⇒ 2.5 hours
    80 pages ⇒  x   hours
∴
Using cross multiplication:
∴
So, The time taken to read 80 pages 
= <u>5.56 hours = 5 hours and 33.33 minutes</u>