81÷s = 90÷100
s= 81 x 100 ÷ 90
s= 90
81 students is 90% of 90 students
Answer:
21/7
Step-by-step explanation:
I’m pretty sure the answer is -4,-5
Answer:

Step-by-step explanation:
we know that
1) Originally Wyatt and Stella have 
2) They give
to Henry
therefore
Now
Wyatt and Stella have 