The mistake Shawna made was in her answer the 54 repeats so the bar should be over the .54 not the .545
Remember that an exponent means repeated multiplication.
The exponent of 4 means you have four
's mutiplied together:

And then each exponent of 2 inside means you have two
's multiplied inside each set of parentheses.:

There are 8 b's there when you expand this out.
The answer is 270 found out by google calculator.
Answer:
No
Step-by-step explanation:
To find out if (4,10) is a solution to the system, we plug in the values of x and y into each equation.
1:
2:
As you can see, (4,10) only satisfies ONE equation, not both. Therefore, the answer is no, it's not a solution.
Answer:
9
Step-by-step explanation:
13-4=9
the side with the 4 should add up to the side with the 13 so the answer is 9