22% since 100-78 is 22 so that is the percentage of numbers between 78 and 100
Lets write equation of a function:
y = kx + n
Direct variation in simple is equation of a line which has n=0 or in other words which y to x ratio is k.
First option gets 7=7 but it isnt direct variation because n is not equal to 0
third option is indeed correct. once we implement coordinates (2,7) we get 7=7
Answer is
y = 7/2x
11/21 would be the answer
6. 7/3
8. 7/3
please don't get mad if these answers are wrong
