Answer:
Step-by-step explanation:
In order to solve this, we are trying to find the value of 
. Basically, is a placeholder for a number that is unknown. Some number minus 3 is equal to 21.
Our goal is to find . To do this we want to isolate on one side of the equation
Let's add 3 to both sides.
Hope this helped!
Answer:
11/2
Step-by-step explanation:
you use the keep, change, flip method so this becomes 11/3 times 3/2 then multiply regularly
A) number of outcomes * number of outcomes =9*9=81
possible outcomes 123456789 for 1 digit
b)number of outcomes(even) * number of outcomes(even) =4*4=16
possible outcomes even 2468
What you have to do is multiply 5.12*2
10.24 meters
