Question 35529
I have trouble with these remaining problems i could use some help answering these thank you
Geometric sequencing
three of the five variables a1, an, r, n, and Sn are given. Find the two variables not given.
FORMULAE ARE 
AN=A1*R^(N-1)
SN=A1*(R^N -1)/(R-1)
a1 = 10, r = 3, n = 5......AN=10*3^(5-1)=810...SN =10*(3^5-1)/(3-1)=1210.
a1 = 4, an = 324, r = 3....324=4*3^(N-1)...N=5...SN=4*(3^5 -1)/(3-1)=484
an = 24, r = 2, n = 4....24=A1*2^(4-1)...A1=3...SN=3*(2^4 -1)/(2-1)=45
Sn = 1022, r = 2, n = 9 ...1022=A1(2^9 -1)/(2-1)=A1*(512-1)=511A1...A1=2
AN=2*2(9-1)=512