Answer:
Perimeter of the semicircle is the formula r(π+2).
Radius r=14 cm
So, perimeter =14(π+2)... where π= 22/7
=2(22+14)=44+28=72 cm
So , the answer is 
72 I guess 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
You would plot the following points, remembering that they’re in the form (x,y) = (time, height): 
(1,35) (2,60) (3,92) (4,120) (5,175)
The ordered pairs would be closer together, and there would be 4 times more of them if you were to measure every 15 seconds instead. You would have a line with more points that were closer together.
 
        
             
        
        
        
Answer:
164
Step-by-step explanation:
The formula is *4
41*4=164
 
        
             
        
        
        
Answer:
José has 49 used stamps
Step-by-step explanation:
7 used stamps for every 4 new stamps
To solve this type of problem, we can use a ratio
7 : 4 ratio
He has 28 new stamps 
7 : 4 = x : 28
Ratios can be written as fractions
 
 
Cross multiply
4x = 7(28) = 196
Divide by 4 on both sides
x = 49
Hope this helps :)