20=x+10
x=10 would be your answer
You have a 33.33% chance to get it right each time
multiply 33.33%*33.33%*33.33%= .3333*.3333*.3333
it equals about 4%
Answer:
You add up all the sides of the shape
Answer:
x (x^2+4)
Step-by-step explanation:
See the steps below:)