Answer:
The unit rate is equal to 
Step-by-step explanation:
we know that
The unit rate is the ratio of two measurements in which the second term is equal to one
In this problem to find the unit rate, divide the total cost of cereal by the total weight of cereal
so

therefore
The unit rate is equal to 
The answer is 25%
Percent change = [(500 - 400) / |400|] x 100 = [(100) / 400] x 100 = 25 %
hope it helps
Answer:
The area is 196π, or 615.752160 when evaluated to 6 decimal places.
Step-by-step explanation:
There is an equation for the area of a circle:
A=π
, Where A is the area and r is the radius. π is π, it is its own number. Plugging in the radius stated we can evaluate:
A=π(
)
A=196π
If we write out π and evaluate with an (un)reasonable amount of decimal places:
π≅3.1415926536
A=196×(3.1415926536)
A≅615.752160
Answer:
D
Step-by-step explanation:
Using the rule of radicals
⇔ 
given

= 
[ cancel 30 and 5 by 5 and (x - 1) / (x - 1)² by (x - 1) ]
=
→ D
I believe its 5 but if there are answer choices that would help us answer them better.