Guest Session: 1 Question Remaining.
Create Account
to save progress.
Login
Geometric Sequences
hard
0:00.0
Find
r
r
r
if
a
1
=
10
,
a
2
=
20
a_1=10, a_2=20
a
1
=
10
,
a
2
=
20
.
A
2
2
2
B
0.5
0.5
0.5
C
10
10
10
D
None
Submit Answer