Answer:
504 combos
Step-by-step explanation:
Cannot use digits twice and last is '7'
9 digits for first place choice
8 digits for second place
7 digits for third place
only '7' for fourth place 9 x 8 x7 = 504 combos
Answer:
you did not give us choices.
Step-by-step explanation:
Sin 0 sin 3pi/2 and tan pi
cos pi/2 is -.5
cos 0 is 1
It's not reasonable to give him 4 gallons because that's way too much for a dog bowl.