Working out the expression 7(3ˣ) is first to calculate the value of 3ˣ then multiply the answer to 7.
For example, let x = 2
Then 7(3ˣ) = 7(3²) = 7 × 9 = 63
With the same value of x = 2, calculating 21ˣ = 21² = 441, which isn't the same answer with the expression 7(3ˣ)
Answer:
hope this helps you!!!
Step-by-step explanation:
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First, let's simplify this a bit ok?

Now, as a decimal: 3.5
As percent you multiply the number by 100 % (which is 1, and you an always multiply by 1):
3.5 *100%=350 %.
Answer:

Step-by-step explanation:
You use the Pythagorean theorem since a triangle is formed.


36-4 =
x= 
Answer:
loln
Step-by-step explanation: