On the double number line, 3 minutes corresponds to 180 beats. How many beats are there in 3 minutes? [Type your answer as a number.]

The doghouse shown has a floor, but no windows. find the total surface area of the doghouse, including the door.

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

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