Step-by-step explanation:
A. this is a geometric sequence.
according to y-coordinates =>
3, 6, 12, 24
have a T1 = 3 and ratio = 6/3 = 2
B. the formula = Tn = r. T(n-1)
T5 = 2. T4
= 2. 24 = 48 minutes
C. the formula : Tn = T1 . r^(n-1)
T9 = 3. 2^(9-1)
= 3. 2^8
= 3. 256
= 768 munutes
3+6x+3x+ 6 = 180
9x + 9 = 180
9x = 171
x = 19
Answer:not sure sorry
Step-by-step explanation: I need points
I haven't done this kind of work in a bit, but I believe it's 8.
