Question

Suppose U = {1, 2, 3, 4, 5, 6, 7, 8} is the universal set, and P = {1, 3, 5, 7}. What is P'?
{2, 4, 6, 8}
{1, 2, 3, 4, 5, 6, 7, 8}
{1, 3, 5, 7}
{1, 3, 5, 7, 8}

Answer 1

When you have a universal set U, and a set P
P'
is just a short way to say

"all elements in U but NOT in P"

:)

Answer 2

The French Club is sponsoring a bake sale. If their goal is to raise at least $140.00, how many pastries must they sell at $3.50 each to meet that goal? Write and solve an inequality.
3.50p ≥ 140; p ≥ 490
140p ≥ 3.50; p ≥ 40
3.50p ≥ 140; p ≥ 136.5
3.50p ≥ 140; p ≥ 40