Solve the system using row reduction on a calculator: 7x − 3y + 2z = 19 6x + 5z = 32 5x − 2y + 6z = 32 Answers: (4, 2, 1) (2, 4, 1) (2, 1, 4) (4, 1, 2)

Identify which functions are linear or non-linear. a. f(x) = x2 + 1 b. f(x) = 2x + 5 c. f(x) = x 2 + 3 d. f(x) = 3 x + 7 e. f(x) = 4x + 10 2 - 5

It takes an ant farm 3 days to consume 1/2 of an apple. at that rate, in how many days will the ant farm consume 3 apples

Amayoral candidate would like to know her residents’ views on a public open space before the mayoral debates. she asks only the people in her office. her co-workers are an example of a census population convenience sample simple random sample