1. Use the laws of logic to show that ∀x(P(x) ∧ Q(x)) implies that ∀x Q(x) ∧ ∀x P(x).
2. Which of the following arguments are valid? Explain.
A. I have a student in my class who is getting an A. Therefore, John,
a student in my class is getting an A.
B. Every girl scouts who sells at least 50 boxes of cookies will get
a prize. Suzy, a girl scout, got a prize. Therefore Suzy sold 50 boxes
of cookies.

Answer this question! 30 points and brainliest!

Expresa commuter train leaves downtown sation and travels at a average speed of 55 miles per hour towards the north side sation, which is 50miles away. thirty minutes later, express commuter train #7 leaves north side and travels at a average speed of 35miles per hour towards downtown sation. at the moment the two trains pass each other, how far(in miles) is train #12 from the downtown sation and how long(in minutes) has the #12 train been traveling

Someone me what is the area of this figure? 18m 18m 8m 16m