Subtract (-0.5x - 0.4) - (0.75x - 0.6)

-1.25x + 0.2

Step-by-step explanation:

( -0.5x - 0.4 ) - ( 0.75x - 0.6 )

= -0.5x - 0.4 - 0.75x + 0.6

= -1.25x + 0.2

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.

98%

step-by-step explanation: