You go through and square each term in the parentheses
(12a^2b^6)^2 = (12)^2(a^2)^2(b^6)^2 =
144a^4b^12
1.
of students ride the bus to school. Note that

2.
of students walk to school.
3. The fraction of students that ride the bus or walk to school is

Answer: the fraction of students that ride the bus or walk to school is 
Answer:
(Q + R)(P - Q)
Step-by-step explanation:
PQ + PR - RQ - Q² = (Q + R)(P - Q)
A20-a18=a1+19d-a1-17d=2d =281-97
so
d=92
I think its 180/24 here is my work
so you find the lcm of 