Answer:
3xy (4x^2 + 2xy - 3y^2)
Step-by-step explanation:
Answer:
1 .Each classroom contains 20 students so we multiply it times 8
90% of (20x8).
90\100 x 160
9x16 students
144 students
The answers are as follows; .275,.225, 2, .30
Combine terms using exponent rules:

First rewrite everything so that you have 2^m terms and x^m terms