1. which of the following numbers is a rational number and an integer but is not a whole number? 3.62, -3, 4, 8.2, 7

2. after erin's birthday party, she had 2 5/8 cupcakes left. write the number of leftover cupcakes as a decimal.

3. mia's mom made a casserole for dinner. after dinner, there was 7/8 of the casserole left. mia's brother ate 1/3 of the leftover casserole. what fraction of the casserole did mia's brother eat?

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.