X=2 because 3 times 2 is 6 and then you add 6 and 7 together and get 13.
Answer:
85
Step-by-step explanation:
add 4 values, excluding 72 (lowest grade)
total = 339
average = 330/4 = 84.75
84.75 rounding to nearest integer is 85
Answer: 2/3
Step-by-step explanation:
Fifty , 50 20+30=50, not sure if its asking much else