Answer:
(2a + 1)(a + 3) = 2a² + 7a + 3
Associative property Says that you can add or multiply regardless of how the numbers are group
This might not be correct but....
I’m going to use rounding,
42 x 2 = 84
84 divides by 3 = 28,
Which is near 30......So the number of people in the group is rounding to about 2 people.
Answer:
none of them are perpendicular or parallel
