Which are equivalent expressions? check all that are true. (a + 3b) · 3 = 3a + 9b a + 3b · 3 = a + 9b a + b · 3 = 3a + 3b a + 3b · 3 = 3a + 6b a + b · 3 = a + 3b

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?

Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. she then makes a confidence interval. is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg: (0.064, 0.156)

Select the undefined term that best defines the arrow pictured. point line plane