Idon’t understand questions 1 and 2.

Step-by-step explanation:

One

2/3 = 0.6666

4/5 = 0.8

5/6 = 0.8333

On a number line, the last 2 would be close to 1 and 4/5 would be closer to the center than 5/6.

2/3 is over half so it would be closest to the 1/2 point and the furthest left of the the points.

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O                                                             2/3                   4/5   5/6

Two

What primes make up the number given

38: 2 * 19                

18: 3 *3 * 2

24:2*2 * 2 * 3

81: 3 * 3 * 3 * 3

the answer for this question is 38

question 1 is 8, question 2 is 9, question 3 is 24

step-by-step explanation:

now, the numbers they give you at the top are the key. from there, you just have to plug and chug! let's try 1, 2, and 3!

key: a=3, b=5, c=6

1. a+5

remember, a=3, so we plug that in to get 3+5=8

2. 15-c

c=6, so we plug that in to get 15-6=9

3. 4b

b=6, so we plug it in to get 4*6=24

time to try the rest on your own! if you put the answers below in a comment, i'll check them for you!