Answer:

Step-by-step explanation:
Maybe you want to simplify ...

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The distributive property and the rules of exponents are useful.
ab +ac = a(b+c)
(a^b)(a^c) = a^(b+c)
1/a^b = a^-b
Answer:Hence, the grapefruit is 20% heavier than the apple.
Step-by-step explanation:
Let the weight of orange be x.
This means that the weight of grapefruit is:
1.08x
( Since grapefruit is: 8% heavier than orange )
Also, the weight of apple is 10% lighter than apple.
This means that the weight of apple is: 0.90 x
Hence, the percent change in the weight of grapefruit as compared to apple is calculated by:
If all you want is to expand the number, then multiply all of the parts inside the parentheses by what's on the outside:
2 * x + 2 * 8 = 2x + 16
Given:
An annual pass to a park costs $120.
To find:
The 200% of the full price using percent model.
Solution:
In the percent model,
100% = 1 box
It means 1 box represents park costs $120.
200% = 2 box

It means 2 box represents park costs $240.
Therefore, 200% of the full price is $240.