Answer:
(E) (20k - 150)/(k - 10)
Step-by-step explanation:
Sum of all scores = average × number of scores = 20 × k = 20k
Sum of 10 scores = 15 × 10 =150
Sum of remaining scores = 20k - 150
Number of remaining scores = k -10
Average of remaining scores = sum of remaining/no. remaining
= (20 k -150)/(k-10)
Answer:

Step-by-step explanation:
The answer is A because 2 multiplied by 9 is 18
Answer:
it doesnt work
Step-by-step explanation:
Answer:
the first one
Step-by-step explanation:
1/2 and 1/5 common denominator is 10