Please help explain

Ashley received a raise at work that increased her monthly income from or $1,000 to $1,250. Last year, Ashley bought 20 slices of cheesecake for her birthday party. Due to her increase in income, she is able to buy 24 slices for her birthday this year. Inc Using the mid-point formula, the income elasticity is and the cheesecake slices are goods. E = O a.) 1.3; luxury Inc An O b.) 0.5; normal lux c.) 0.8; normal 2. N ( d.) 1.2; luxury Let's st Nike a