Answer:
We use the formula:
S 10 = 8 · [(1/2)^9 - 1] / (1/2 - 1 );
Then, S 10 = 8 · ( 1/512 - 1 ) / ( 1/2 - 1 );
S 10 = 8 · ( - 511 / 512 ) / (-1 / 2 );
S 10 = ( - 511 / 64 ) · ( - 2 );
S 10 = + 511 / 32;
S 10 = 15.96;
Step-by-step explanation:
So your base equation would be y = 15x - 45
(The -45 is the free three months)
Then you would substitute 90 into the y position and solve, so your answer would be 9 months.
The answer would be 3x+3 equals 6x << answer :)
PLEASE make sure to thank me by pressing the thanks button also give me the brianeist answer/crown! :D
answer for this question is (b) - 3 x + 6 x /8x- 9
Answer is C. Hope this helps. Rate and thanks and brainliest answer would be nice. -<span>Haяяison</span>
