A hiker climbed up from the bottom of a mountain. His elevation increased at a rate of 40 feet each hour.
Which equation models the change in his elevation at 3 hours?
A. (-3)(-40) = -120
B. 3(-40) = 120
C. 3.40 = 120
D. 3(-40) = -120

Find the area of the triangle shown 3 by 6

What is the 17th term in the arithmetic sequence in which a6 is 101 and a9 is 83

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