Step-by-step explanation:
pls can you give me the answer I want to be sure
 
        
             
        
        
        
Answer:
I assume you know Arithmetic Progression .
so, we have to find the first and last 4-digit number divisible by 5
first = 1000 ,  last =  9990
we have a formula,    = a + (n-1)d
 = a + (n-1)d
here,  is the last 4-digit number divisible by 5.
 is the last 4-digit number divisible by 5.
n is the number of 4-digit even numbers divisible by 5 
d is the common difference between the numbers, which is 10 in this case 
a is the first 4-digit number divisible by 5
9990 = 1000 + (n-1)*10
899 = n-1
n = 900
Hence, there are 900 4-digit even numbers divisible by 5
 
        
             
        
        
        
Answer:
644,262 copies
Step-by-step explanation:
Since this is a proportion problem, and we are given three values and one variable which is the total number of copies sold to date (x). Then we can use the Rule of Three to solve this problem. To do this we simply multiply the diagonal values and divide by the last value which would give us the value of the variable x
39,300 copies  <======>  6.1%
     x   copies   <=======>  100%
(100*39,300) / 6.1 = 644,262 copies
Therefore, a total of 644,262 copies have been sold to date.
 
        
             
        
        
        
Answer:
21
Step-by-step explanation:
 
        
             
        
        
        
Answer:
s(r(4)) = 13
Step-by-step explanation:
Substitute and calculate:
s(r(4)) = 13