Answer:
Independent- wall Dependent- amount of paint
Step-by-step explanation:
The independent variable is the variable the experimenter changes or controls and is assumed to have a direct effect on the dependent variable. ... The dependent variable is the variable being tested and measured in an experiment, and is 'dependent' on the independent variable.
Answer: Choice B) 
Work Shown:

Note: secant is positive in quadrant Q4, when theta is between 3pi/2 radians and 2pi radians (270 degrees and 360 degrees). So that's why we don't consider the minus form of the plus minus.
The answer to this question is:
83/100
Answer:
5.5 = 5.5 = 55 1/2
6.5 = 6.5 = 66 1/2
Step-by-step explanation: