You have to pay the 90$ we all ready know it’s over 90. 15% of 90 is just 90x0.15 which is 13.50. So the fee (13.50) plus the cost(90) is 103.50$ total for the raft
Let the marks of the students in class 1 be

the average of these 12 marks is 90, so

which means

similarly, let

be the marks of the students in the second class,
so

which means

The 32 students averaged:
I hope this help in some sort of way you can message me if you need more help
Question- The image is appearing blank for me, could you try and re-send it or forward it to me. Thank you.
1 is wrong there are two numbers greater than 4 but less than or equal to 6.
the first one was correct