4x + 7 <=== ur expression






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And we're done.
Thanks for watching buddy good luck.
♥️♥️♥️♥️♥️
To find the common ratio, start at the end and divide terms:
(8/9) / (4/3) = (2/3)
(4/3) / 2 = (2/3)
2 / 3 = (2/3)
The ratio is 2/3
It is an isosceles triangle because 2 side lengths are the same.