Knowledge matters pick and promoting a band simulator

What does the consumer price index measure? a. the change in prices of all goods and services over time b. the change in prices of specific goods and services over time c. the change in prices of final goods and services over time

What do economists mean when they use the latin expression ceteris paribus?

Suppose the number of equipment sales and service contracts that a store sold during the last six (6) months for treadmills and exercise bikes was as follows: treadmill exercise bike total sold 185 123 service contracts 67 55 the store can only sell a service contract on a new piece of equipment. of the 185 treadmills sold, 67 included a service contract and 118 did not.