Answer:
12
Step-by-step explanation:
12×4=48
48 rounded to the nearest 10 is 50
C is a geometric sequence. the terms share a ratio of 5
So... hmmm if you check the first picture below, for 2)
we could use the proportions of those small, medium and large similar triangles like

now.. for 3) will be the second picture below
Answer:
0.066666666
Step-by-step explanation:
also known as 0.06 repeating
The seventh term of the sequence is
-1
—
25