The table shows the estimated number of deer living in a forest over a five-year period. which type of function best models the data? write an equation to model the data.

year estimated population
0 100
1 79
2 62
3 49
4 39

a. linear; y = 0.79x + 100
b. quadratic; y = 100x2 + 0.79
c. exponential; y = 100 * 0.79x
d. quadratic; y = 0.79x2 + 100

For the following geometric sequence, find the recursive formula. {-80, 20, -5, } i need : ')

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.

A. what is the area of the base? use complete sentences to explain your reasoning. b. what is the volume of the prism? use complete sentences to explain your reasoning.