Nancy is making cookies for a bake sale. she needs a total of 4 pounds of chocolate chips. she has a 28-ounce bag of chocolate chips, but the store now only has 10-ounce bags. how many bags of chocolate chips does nancy need to buy?

25.2

step-by-step explanation:

2+4x6-8/10= 25.2

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.