Regents Review: A used book store also started selling used CDs and videos. In the first week,
the store sold a combination of 40 CDs and videos. They charged $4 per CD and $6 per video
and the total sales were $180. Determine the total number of CDs sold.

15%

step-by-step explanation:

use the table and count the number of guesses that has two correct answers.

the following are two correct answers

10010, 01100, 11000

a total of 3 numbers having 2 correct guesses out of 20 questions.

probability of getting 2 correct guesses = the number of questions getting 2 correct answers / total number of questions.

= 3/20

to convert it into percent multiply by 100, we get

= 3/20 * 100

= 15%

the answer is 15%

you.

the aswere is the one with all 8's and the second one is with the 10,8 and 6

step-by-step explanation: