1. what should be the next number in the following
series?
5000 1000 200 40

The next number in the following should be 8.

Step-by-step explanation: This is because you are first starting with the number 5,000. According to the problem you are dividing each number by 5, 5000/5 = 1000, 1000/5 = 200, 200/5 = 40... etc. So, in this case you will divide 40/5 will equal 8.

the figures below are made out of circles, semicircles, quarter … find the area and the perimeter of each figure and give your answers as a completely simplified exact value in terms of π (no approximations). remember that we'll also have to cut whatever areas we get in half, since we're only dealing im pretty sure that is the right answer

step-by-step explanation:

i think the answer is b