What is a variable also called the manipulated variable

A manipulated variable is the independent variable in an experiment. It's called “manipulated” because it's the one you can change. In other words, you can decide ahead of time to increase it or decrease it. In an experiment you should only have one manipulated variable at a time. me this is correct hope this helps! <3

Explanation:

the aswer is letter c

if you add everything up correctly you should get 69 i got this because 50 plus 19 is it