Answer:

Step-by-step explanation:









Answer:
60 degrees
Step-by-step explanation:
It is less than 90 degrees
Answer:
Option A is correct.

Step-by-step explanation:
Given:
; 
for n = 2
= 
for n =3
= 
Simlarly , for n =4
= 
and so on...
Common ratio(r) states that for a geometric sequence or geometric series, the common ratio is the ratio of a term to the previous term.
we have; 
Now; by recursive formula for geometric series:

where
is the first term and r is the common ratio:
Substitute the value of
and 
we have;

therefore, the explicit rule for the geometric sequence is; 
We will use the equation:
r t = 3/4 r ( t+12 ) /:r
t = 3/4 t + 9
t - 3/4 t = 9
1/4 t = 9
t = 9 * 4 = 36 minutes ( takes a trip to the market )
36 + 12 = 48 minutes
The ride home takes 48 minutes.