Here is part of it I’ll send the other part now
Answer:
d
Step-by-step explanation: hhhhhhhhhhhhhhhhhhhhhhhhhh
Answer: 
Step-by-step explanation:
Since, the quotient of 6 and r = 
The sum of two and the quotient of 6 and r
= 
And, Five-sevenths of the sum of two and the quotient of 6 and r
= 
Thus, the required expression is, 
Answer:
what kind of a question is this? lol. seems liek u need to subtract those 20 students from 70. im not sure wat ur askin but here. try this.