Answer:
The amount that came is 
Step-by-step explanation:
The computation is shown below:
According to the question, it is mentioned that
Multiply 4 by 
First open the equation in a fraction it would be 
Now multiplied the above fraction by a 4
That gives the result of 
Hence, the amount that came is 
We simply multiply the 4 with the given fraction
Thus the above represents the simplest form of the fraction
Thickest to thinnest....
0.33m , 0.3mm, 0.275mm, 0.25mm
Answer:
V= about 4,222.3 units
Step-by-step explanation:
d=24 so r=12 d/2=r
V= pi r sq times h/3
V=pi 12 sq times 28/3
V= pi 144 (28/3)
V= about 4,222.3
Let's say David's age right now is x years
x + 6 = 2(x - 7)
x + 6 = 2x - 14
x = 20
Therefor David is 20 years old