Lauren simplified the expression (m Superscript negative 7 Baseline) Superscript negative 5 as shown. (m Superscript negative 7 Baseline) Superscript negative 5 = m Superscript negative 7 + (negative 5) Baseline = m Superscript negative 12 Baseline = StartFraction 1 Over m Superscript 12 Baseline EndFraction

Which statement explains Lauren’s error?
She should have subtracted the exponents instead of adding them.
She should have multiplied the exponents instead of adding them.
She should have found –2, not negative 12, as the exponent when she added.
She should have written m Superscript negative 12 as m Superscript 12.

Apsychology student wishes to investigate differences in political opinions between business majors and political science majors at her college. she randomly selects 100 students from the 260 business majors and 100 students from the 180 political science majors. does this sampling plan result in a simple random sample? why or why not? no, because each group of 200 students in the sample does not have the same chance of being selected. yes, because each group of 200 students in the sample has the same chance of being selected. no, because each individual student does not have an equal chance of being selected. yes, because each individual student has the same chance of being selected.

The function f(x) = 14,600(1.1)* represents the population of a town x years after it was established. what was the original population of the town?

Find solution of the linear equation y = 2/3x + 1/3