Ms. cho bought 1/3 yard of wool and 5/8 of oil. the wool cost $9 per yard and the silk $12 per yard. how much did ms. cho spend in all?

The geometric series is given by:

Step-by-step explanation:

We are given the following in the question:

The numbers of teams remaining in each round follows a geometric sequence.

Let a be the first term and r be the common ratio.

The term of a geometric sequence is given by:

There are 16 teams remaining in round 4 and 4 teams in round 6.

Thus, we can write:

Dividing the two equations, we get,

Putting value of r in he equation we get:

Thus, the geometric sequence can be written as: