Ihave a test coming and im not doing so hot for review. can i get some ?

30 pieces

Step-by-step explanation:

1 dekameter=10 meters

30

Step-by-step explanation:

1 dekameter is 10 meters, so one piece of the ribbon can make 10 key chains.  But since he has 3 pieces of ribbon, that means he can cut 30 pieces of ribbon.

x= -3

step-by-step explanation:

step 1: simplify brackets

4 - x - 1 = 6

step 2: simpilfy

3 - x = 6

step 3: subtract 3 from both sides

-x = 6 - 3

step 4: simpilfy 6 - 3

-x = 3

step 5: multiply both sides by -1

x = -3

the least value out of the data shown is 5, maybe if you post a picture with it i could a little more.

step-by-step explanation: