Using proportions, it is found that she will pay $8.28 in total after the discount.
<h3>What is a proportion?</h3>
A proportion is a fraction of a total amount, and the measures are related using a rule of three.
Before tax, the total price is given by:
P = 3.59 + 4.25 + 3.99 = $11.83.
She gets a 30% discount, hence the proportion she pays is 70% of this amount, hence:
P = 0.7 x 11.83 = $8.28.
She will pay $8.28 in total after the discount.
More can be learned about proportions at brainly.com/question/24372153
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Here you go I used markup on my iPhone picture editor sorry if it looks choppy
x 55
-------- = ---------
69.50 100
69.50*55= 3822.5
3822.5/100= 38.225
x=$38.22
Y equals 5 over 7x minus 5
<span>A. 5 x 9 =45
</span><span>D. 30 x 60 = 1,800</span>