Find a, for the series with the following characteristics. Common Ratio = 3
Last Term = 324
Sum = 484
a) -4/3
b) -4
c) 3
d) 4/3
Show work please!
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Will give a Brainiest

mariah is studying the life cycle of the monarch butterfly. she must choose one stage in the cycle to present in science class: egg, caterpillar, chrysalis, or adult. she plans to make her choice randomly using a custom spinner divided into four sections. first, however, she spins the spinner 50 times to see the frequencies it generates.

stage times landed on

egg 10

caterpillar 12

chrysalis 15

adult 13

step-by-step explanation:

triangle eg 7.5 × cos "a" or 7.5 × sin "b" or 6 tan"a"