Answer:
im pretty sure its 14 
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
D. There is no association because the distribution of lunch preference is approximately the same among the pet groups.
 
        
             
        
        
        
1. 15
2. 9/14
3. 5/8
4. 2
5. 8.4*10 exponent -3
6. 90
7. 0.0025
8. -60
9. 15 
For 9 I’m not that sure but I’m guessing it’s an absolute value question???
Btw can I have brainliest? Lol
        
                    
             
        
        
        
Answer:
7. -
a. 3.5 or 7/2 hours
b. 24.5
c. After 7 hours (and at the beginning when t=0)
8. -
a. 4 seconds
b. 1 second
c. 54 meters
Step-by-step explanation:
7. M(t)=-2t^2+14t
 M’(t)=-4t+14
a)
-4t+14=0
4t=14
2t=7
t=7/2
b) M(7/2)=24.5
c)
M(t)=0
-2t^2+14t=0
t^2-7t=0
t(t-7)=0
t=0, 7
8.
a)
h(t)=0
-6t^2+12t+48=0
t^2-2t-8=0
(t-4)(t+2)=0
t=-2, 4
t=4
b)
h(t)=-6t^2+12t+48
h’(t)=-12t+12
h’(t)=0
-12t+12=0
12t=12
t=1
c) h(1)=54
I hope this helps; please vote brainliest! 
 
        
             
        
        
        
Y= 75.
Lets try to solve it,
When positive integer x is divided by positive integer y, the remainder is 9 
=> x=qy+9;
=> x/y=96.12 
 =>x=96y+0.12y (so q above equals to 96);
 =>0.12y=9 
 => y=75.
Hence the value of y would be 75.
Learn more about Positive Integer on:
brainly.com/question/1367050
#SPJ4