Answer:
There are 60 activity booklets in the media lab.
Step-by-step explanation:
- 30/2 = 15
Why divide those numbers? 
For every 2 computers in a lab with 30 computers means you have to divide
- 15x4 = 60
Why multiply those numbers?
4 activity booklets for every 2 computers in a lab of 30 computers, so multiply 
I hope this helps.
 
        
             
        
        
        
3 + 1.75m 
This represents 1.75 per mile plus a one time 3 charge. 
Another way this can be written is 
(1.75m + 6) - 3 
This is a less efficient way, but represents the same. It is 1.75 per mile, this is plus 6, therefore we add the -3 outside the parenthesis so it evens out to +3 as the base charge. 
Example: Lets say its 3 miles. 
3 + 1.75 (3) = 8.25 
(1.75 (3) + 6) - 3 = 8.25
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
10x+ 150=220 is the equation for the second plan you subtract 150 from 220 to get 70 and divide that by 10 and you get 7 which is the number of weeks it'll take 
220/25=x 
So for this one it'll take 8.8 weeks to get enough money and you divide 220 by the amount which is 25 to get 8.8 the number of weeks I'll take 
I dont understand what the second one is asking so sorry dude but I think that's right 
 
        
                    
             
        
        
        
Ok so 
sale is 15% off
and add 6% tax
100-15=85
100+6=106
therefor
1250 with 15% discount plus 6% tax means
1250 times 85% times 106% =
1250 times 0.85 times 1.06=1126.25
final cost=$1126.25
        
                    
             
        
        
        
Answer:
M1, A1, T1, H1, M5, A5, T5, H5
Step-by-step explanation:
So from each of the first branches, we would consider the sample space of choosing a letter from the word MATH. There would be 4 branched, with M, A, T, and H. From each of those, you would have to split them into 2 branches, one for the 1 and one for the 5, from the digits of 15. So you would end up with 8 total branches at the end.