The points received on a 100-problem test are shown in the table below. Nicholas solved 86 problems correctly and did not answer 6 problems. Which expression will calculate
his score on the test? (1 point)
Points per problem
Correct
1
Incorrect
No answer
0
O A. 86+6.(-4)
OB. 86 - 6.(-4)
OC. 86 + (-2)
D. 86 - (-2)

a=r

d=q

c=p

b=s

hope this !

the answer is 510

step-by-step explanation:

15 • 13 = 195

15 • 12 = 180

15 • 5 = 75

12 • 5 = 60

195 + 180 = 375

375 + 75 = 450

450 + 60 = 510

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.