You are looking at a 24-foot ladder at Lowe's. The safety instructions say that the base of the ladder should never be
closer than 8 feet to the wall. You want the top of the ladder
to reach 21 feet up the wall. Is the 24-foot ladder long enough?

You have 6 dollars +12 pennies +to quarters + 4 dimes=2 nickels how much do you have

Lena reflected this figure across the x-axis. she writes the vertices of the image as a'(−2, 8), b'(−5, 6), c'(−8, 8), d'(−4, 2).

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.