The table below details Student A's monthly purchases during 2019 and 2020. Answer the following questions writing out dollars and cents for monetary values e.g. $1.00, item weights to two decimal places e.g. 0.10, price index values as whole numbers without decimals, e.g. 110, and percentages to one decimal place e.g. 1.0%. Quantities (# consumed per month) 2020 Prices ($) 2019 2020 2019 Hotdogs 2.40 2.50 5 4 Cans of Cola 1.15 1.10 15 17 Chocolate bars 1.00 1.00 Magazines 5.75 6.75 3 Movies 3.00 2.75 a. The value of Student A's 2019 shopping basket using 2019 prices is $ 59.50 The item weights associated with this shopping basket are 0.20 for hotdogs, 0.29 for cola, 0.12 for chocolate bars, 0.29 for magazines, and 0.10 for movies. b. The value of Student A's 2019 shopping basket using 2020 prices is $ 61.75 If 2019 is used as the base year, the 2020 value of Student A's price index is 104 and the 2019 value of this index is then 100 With 2019 as the base year this index has changed by 4.0 % between 2019 and 2020.