Step-by-step explanation:
r=14/7=28/14=56/28=2
So it is geometric
By using this equation:
a(n)=a1*(r)^(n-1)
and we have a(1)=7 , r=2
<u>explicit equation : a(n)=7*(2)^(n-1)</u>
<em>hope this helps</em>
Answer:
1a, 1b, 1c, 1d, 2a, 2b, 2c, 2d, 3a, 3b, 3c, 3d, 4a, 4b, 4c, 4d, 5a, 5b, 5c, 5d
20x2 = 40
you half ot do the a1,a2,a3,a4 you get what i mean