An = a1 * r^(n-1)
-405 = -5*3^(n-1)
3^(n-1) = 81
3^4 = 81 so n-1 = 3 and n = 4
Sn = S4 = -5 (1 - 3^4) / ( 1 - 3) = 400 / -2 = -200 Answer
Answer:
Whats the question
Step-by-step explanation:
also if you are looking for the unit rate its <u><em>153.846...</em></u>
or if you are looking for how many in 2 years then <u><em>650,000</em></u>
<u><em>Hope this helps </em></u>
<u><em>Have a nice day</em></u> :)
Answer:
4
Step-by-step explanation:
The plus and minus sign cancel each other out so it becomes 7-3=4
The 54 percentage of 40 inches is 21.6 inches
