C and D would be the answer
Answer:
true
Step-by-step explanation: The two main variables in an experiment are the independent and dependent variable. An independent variable is the variable that is changed or controlled in a scientific experiment to test the effects on the dependent variable. A dependent variable is the variable being tested and measured in a scientific experiment.
Hopfully it helps :)
180=x+13
now you have to solve it this ecuation
36
Step by step explanation: