Step 3: solving real-world problems that involve markups a) a local shoe store buys shoes at a wholesale price and then marks them up 80% to calculate the retail price. the wholesale price varies, depending on the quantity of shoes purchased. (2 points) this is the table quantity 0-20 pairs 21-40 pairs 41-60 pairs 61-80 pairs 81 or more pairs wholesale price (per pair) $25.00 each $23.00 each $21.00 each $19.00 each $17.00 each write an equation that could be used to find the retail price for each range. how do you know the equation will work consistently for each range? (2 points)

Jenisey has $24 to spend on seven pencils. after buying them she had $10. how much did each pencil cost.?

You give a $4 tip for a meal that cost $22. approximately what percent of the bill was your tip?

Questions 9-10. use the table of educational expenditures to answer the questions. k-12 education expenditures population indiana $9.97 billion 6.6 million illinois $28.54 billion 12.9 million kentucky $6.58 billion 4.4 million michigan $16.85 billion 9.9 million ohio $20.23 billion 11.6million 9. if the amount of k-12 education expenses in indiana were proportional to those in ohio, what would have been the expected value of k-12 expenditures in indiana? (give the answer in billions rounded to the nearest hundredth) 10. use the value of k-12 education expenditures in michigan as a proportion of the population in michigan to estimate what the value of k-12 education expenses would be in illinois. a) find the expected value of k-12 expenditures in illinois if illinois were proportional to michigan. (give the answer in billions rounded to the nearest hundredth) b) how does this compare to the actual value for k-12 expenditures in illinois? (lower, higher, same? )