One bag of soil is 5/8 pounds.
you have 16 of them.
just multiply 16 by 5/8.
you could just type it into your calculator, or you could do it the long way:

she has 10 pounds of potting soil.
Answer:
a.) 10 months
b.) Kool Karate
c.) Karate Klub
Step-by-step explanation:
Karate Klub : y=25x+200
Kool Karate : y=35x+100
A.) First, set the equations equal to each other then solve for x. 
take away 100 from both sides

take away 25x from both sides

divide 10 from both sides so x can be by itself and equal to 1

This means that at 10 months, the cost is the same for both.
B.) Substitute 6 for x in both equations
Karate Klub : 
Kool Karate :
The cost for Kool Karate is cheaper, so that is what he should join.
C.) Substitute 12 for x in both equations.
x=12 because there are 12 months in a year.
Karate Klub:
Kool Karate:
The cost for Karate Klub is cheaper, so that is what he should join.
Answer:
The answer to the question is 6/5 or 1.2
24.5 x 0.25 = 6.125 acres that will be used for the new park.
24.5 x .72 = 17.65 acres in the second property