If you evaluate (-2) 15 will the answer be positive or negative? Determine a general rule for the sign of the answer when a negative base is raised to an exponent that is a positive integer.

Angles r and s are complementary. the measure of angle r is 31 degrees. which equation can be used to find angle s?

What is the next step in the given proof? choose the most logical approach. a. statement: m 1 + m 2 + 2(m 3) = 180° reason: angle addition b. statement: m 1 + m 3 = m 2 + m 3 reason: transitive property of equality c. statement: m 1 = m 2 reason: subtraction property of equality d. statement: m 1 + m 2 = m 2 + m 3 reason: substitution property of equality e. statement: 2(m 1) = m 2 + m 3 reason: substitution property of equality

Sammie has 3 times as many goldfish as nora. nora has 4 goldfish. how many goldfish do sammie and nora have in all?