The points (2, 100) and (4, 105) are found on a line. Which function models the relationship between the two points?
A
y=−0.4x+100.8
B
y=0.4x+103.4
C
y=−2.5x+105
D
y=2.5x+95

Find the missing factor. 7s2 + 25s + 12 = (s + 3)( ).

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.

Atorch and a battery cost 2.50 altogether.the torch costs 1.50 more than the battery.what fraction of the total price is the torch? give your answer in its simplest form.