The formula for the nth term b of a geometric series is b=arn-1. find n when b=1,024, a=16 and r=2.

Question 3 of 30 paul buys fruit to make smoothies. he buys 3.78 pounds of apples, 2.12 pounds of peaches, and 4.45 pounds of oranges. paul rounds each weight to the nearest tenth of a pound. about how many pounds of fruit did paul buy? (a) 10.5 pounds (b) 10.2 pounds (c) 10.4 pounds (d) 10.0 pounds 30 points

Select all the correct answers. what is 221,000,000,000,000,000,000 expressed in scientific notation?

Will give brainliest what is the value of x? enter your answer in the box.