If i hiked 5 2/10 kilometers in one weekend and the next week i hike 9/10 kilometer more than then the week before how many kilometers did i walk the second week

6 kilometers

Step-by-step explanation:

From the given question, it can be inferred that;

In the first weekend, distance covered = 5 kilometers.

But in the second week or following weekend, I hike more than the first week implies that, total distance covered in the second week = distance covered in the first week +

                                            = 5 +

                                            = +

                                            =

                                            =

                                            = 6

Therefore, the total distance walked in the second week is 6 kilometers.

256π units²   (answer b)

step-by-step explanation:

the formula for the surface area of a sphere of radius r

is             a = 4πr²

and so, if r = 8 units, then the surface area is:

a = 4π(8 units)² = 256π units²   (answer b)