1. We start by looking at the 12. it goes the whole length of both sides of your figure. So, we can skip adding those 3's, and add two 12's.
2. So far, you have got 24 ft. Now, we still must add the width in so you add 6 more to that 24 (6 because 3 ft. on each side-you add). Your final answer is 30 ft. Hope this helps :)
Kelsey must spend less than or equal to $65. The expression 5.50b+7.5 is correct Kelsey able to purchase 10 books. On the end Kelsey can spend $2.50 to purchase small present (calendar or book for notes)
Find what percent of $39.00 the sale price was. => 15/39*100=38.4% now subtract from 100% to get the mark down percentage. 100-38.4=61.6 Final answer: Marked down 61.6% Hope I helped :)