Select all true statements: Answer choices
2.3 + (-2.3) is equal to 0
(-3.7) + (-4.1) is positive
-2.6 - (-12/4) is positive
5/2 + (-2.5) is negative
72 - (-100) is negative

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

One of every 20 customers reports poor customer service on your company’s customer satisfaction survey. you have just created a new process that should cut the number of poor customer service complaints in half. what percentage of customers would you expect to report poor service after this process is implemented? 1.) 5% 2.) 10% 3.) 2% 4.) 2.5%