30 choices for first seat
29 for 2nd
28 for 3rd
27 for 4th
answer is 30*29*28*27=657720 ways
Step-by-step explanation:
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Answer:

Step-by-step explanation:
*it's kind of hard to read the number in parenthesis though but i think it's 5
both angles have to add up to 180º because they are co-exterior angles on parallel lines.

#4 the answer is 90° because it's a right angle,#3 is A because you have to follow P.E.M.D.A.S
Answer:
1 hour 25 minutes
(or)
85 minutes
Step-by-step explanation: