Which of the following best describes the slope of the line below? O A. Zero
O B. Negative
O C. Positive
D. Undefined

How many quarts of a 50% solution of acid must be added to 20 quarts of a 20% solution of acid in order to get a 40% solution of acid?

Vertical angles must check all that apply

Consider the enlargement of the pentagon. what is the value of x, rounded to the nearest tenth? 2.1 centimeters 3.3 centimeters 7.0 centimeters 15.0 centimeters