If AC= 12cm, what is the length of arc AB to the nearest whole number?

Thank you! Multiple choice!

Which number line represents the solution set for the inequality -1/2x> 24?

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.

Julia spends $5.25 on gas for her lawn mower. she earns $13.00 mowing her neighbor's yard. what is julia's profit?