Riley has a loyalty card good for a 12% discount at her local pharmacy. What would her total in dollars and cents be, after the discount and before tax, if the total cost of
all the items she wants to buy is $17.50? Round to the nearest cent.

The cost after discount would be $15.40

Step-by-step explanation:

Given that:

Discount card = 12%

Cost of items bought = $17.50

Amount of discount = 12% of 17.50

Amount of discount =

Amount of discount = 0.12 * 17.50

Amount of discount = $2.10

Cost after discount = 17.50 - 2.10

Cost after discount = $15.40

Hence,

The cost after discount would be $15.40

i dont know

step-by-step explanation:

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.