Answer is answer 17 plus 78
54:450*100 =
(54*100):450 =
5400:450 = 12
A for the first because there are 4 aces and 1 nine of hearts. that makes it 5 cards of the 52 in a deck
d for the second because there are two cards: the queen of heart and and ace of diamond out of the 52
hope this helped :)
I think the answer would be the last one. a cylinder with radius 4 units.
