In the graph below, line k, y = -x makes a 45° angle with the x- and y-axes. Complete the following: Ry: (2, 5) (-2, -5) (2, -5) (-2, 5)

Aresearch company wants to test the claim that a new multivitamin to improve short term memory. state the objective of the experiment, suggest a population, determine the experimental and control groups, and describe a sample procedure.

There is a spinner with 14 equal areas, numbered 1 through 14. if the spinner is spun one time, what is the probability that the result is a multiple of 2 or a multiple of 5?

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?