Angel volunteered at the city botanical gardens, recording the number of butterflies attracted by each of the 5 exhibits. He
recorded:
7 butterflies 6 butterflies 5 butterflies 8 butterflies 7 butterflies
What was the mean number of butterflies recorded?

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?

Consider this expression and the steps to evaluate it. 4^5(−2)^9/4^8(−2)^3 1. apply the quotient of powers:      (−2)^a/4^b 2. evaluate powers:           c/d select the value of each variable. a = _ b = _ c = _ d = _

Sections of prefabricated wood are each 5 1/3 feet long. how long are 7 1/2 sections placed end to end?