Let x be the number of days.
If Ashley posts 17 status updates each day, then after x days Ashley posts 17x status updates.
If Roberto posts 21 status updates each day, then after x days Roberto posts 21x status updates.
Part A. The combined number of posts for Ashley and Roberto after x days is:
17x+21x.
Part B. The difference between number of posts for Ashley and Roberto after x days is:
21x-17x.
A is 1/8 and b is 5/8, hope this helps!
Answer:

Step-by-step explanation:
From the question we are told that
Height 
Weight 
Depth 
Generally the equation for ellipses is given as

Where


Generally to find y in the equation 



Therefore







Therefore the width of the given stream is



Not enough info.
You need to know how many played soccer.
If the number who played soccer is represented by S;
Then percentage = S/150 x 100