Okay, so we need to find the price of the original shirt and the discounted shirt with the 5% tax.
5% (into a real number) is .05
Multiply 20.98 and 15.48 by .05
20.98*.05= 1.049 I am going to round to 1.05
15.48*.05= 0.774 I am going to round to .75
Now we know the prices of both, so we subtract them by each other.
20.98+1.05= 22.03
15.48+.75= 16.23
22.03-16.23= 5.80
But since we rounded the numbers, I would go with choice D.
Hope this helps!
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A(2,6) translation <span>A=(4,-5)
4 - 2 = 2
-5 - 6 = -11
rule
(x) --->(x + 2) (shifted 2 units to the right)
(y) --->(y - 11) (shifted 11 units down)
</span>
Yes you used the chain rule properly to follow the correct steps to get the right answer. Great job.
If you wanted, you can come up with examples for f(x) and g(x) to help confirm the answer. A quick way to do this is to use something like GeoGebra to help graph the two expressions and you'll notice that the curves match up perfectly (indicating equivalent expressions). Note: GeoGebra can handle derivatives through the Derivative[] comand or you can type the function in the input bar with a tickmark after it to tell GeoGebra to derive the function.
We can add the fractions together to compare with how much sugar she needs.
So Juvi has 
cups of sugar.
She needs 
cups, so let's make the denominators the same and compare.
Since 
> 
, she has enough sugar to make 4 batches of brownies.
Hope this helps.
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