Nessa

1/18

Step-by-step explanation:

÷2

make 2 a fraction

÷

cross multiply

1*1

9*2

Step-by-step explanation:

You always invert the second number in a division question and then multiply. This one is a little different. It has three levels. What do you do about that?

Now you have a four level question which is handled the same way as all four level question.

Invert the bottom and multiply. Invert means turn upside down. So you turn the 2/1 upside down and you get 1/2

What you get is 1/18 The green box with the question mark is a 1.

{3 + i, 3 - i, 3, -1}

step-by-step explanation:

hi there!

question 1 answer: p/q can be terminating when q = 5^m * 2^n

question 2 answer: -1 and -1

question 3 answer: -4

question 4 answer: 5/12

hope this : )