I not 100% sure but I chose C.
Hope this helps.. but good luck :)
Answer:
80
Step-by-step explanation:Solution:
step 1 Address the formula, input parameters & values.
Input parameters & values:
The given numbers are 78 & 80
step 2 Find the sum of the given two numbers.
sum = 78 + 80 = 158
step 3 Divide the sum by 2 to get the average.
average = 158/2
= 79
Thus, 79 is an average of positive integers 78 and 80.
Answer:
Step-by-step explanation:
{ - 9, - 4, - 1}
1/3 of all students bring lunch
2:3 is the ratio of students who bring their lunch to the number of students who do not