Is this situation proportional or non-proportional? How do you know? A gallon of milk costs $1.99. A half-gallon of milk costs $3.89

What is the difference between the predicted value and the actual value

Which statement is true about a number and its additive inverse? a. their product is always one. b. their sum is always one. c. they are always reciprocals of each other. d. their sum is always zero.

Answer each of the questions for the following diagram: 1. what type of angles are these? 2. solve for x. what does x equal? 3. what is the measure of the angles?