12 pencils bought for $9.00. What is the unit rate?

$0.75

Step-by-step explanation:

To find the unit rate, you have to figure out how much each pencil is. Come up with the equation, mine is $9.00/12 = x and now all you have to do is solve. 9.00/12 = 0.75

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.