Distance=speed x time
so it would be 28 x 6=168
Well if you add 14 and 21 you get 35. with 35 you can have 7 groups of 5 but if they have to be equal with the number of boys and girls in each group it would still be 7. two boys in each group with three girls in each group.
Do you have a picture that shows the graphs
After using the property of power, the expressions as a power of the number a is
,
and
.
In the given question we have to solve the given expressions as a power of the number a where a≠0.
The first given expression is
.
Using the property of multiplication of power;
.
Simplifying the expression.


The second expression is 
Using the property of multiplication of power;
.


Using the property of sum of power 


The third expression is
.
Using the property of multiplication of power;
.


Again using the property of multiplication of power;
.


To learn more about property of power link is here
brainly.com/question/28747844
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Answer:
An expression is shown below:
10n³− 15n² + 20xn² − 30xn
Part A: Rewrite the expression so the GCF is factored completely. (4 points)
10n³− 15n² + 20xn² − 30xn
2*5*n*n*n-5*3*n*n+2*5*2*x*n*n-2*5*3*x*n
<u>Greatest</u><u> </u><u>common</u><u> </u><u>factor</u><u>=</u><u>5</u><u>*</u><u>n</u><u>=</u><u>5</u><u>n</u>
Part B: Rewrite the expression completely factored. Show the steps of your work.
Solution given;
10n³− 15n² + 20xn² − 30xn
5n(2n²-3n+4xn-6x)
5n(2n²+4xn-3n-6x)
5n(2n(n+2x)-3(n+2x))
<u>5n(n+2x)(2n-3</u>)