Answer:
36
Step-by-step explanation:
3/4y=6-1/3c
3/4y+1/3c=6
multiplied 6 into equation to get 2c
9/2y+2c=36
so 2c+9/2y=36
Answer:
C
Step-by-step explanation:
The n th term formula of a geometric sequence is
= a 
where a is the first term and r the common ratio
Using the second and fourth term, then
ar = 6 → (1)
ar³ = 54 → (2)
Divide (2) by (1)
=
= 9
r² = 9 ⇒ r =
= 3 → C