John has four more buckles than dimes in his pocket, for a total of $1.25 which equation could be used to determine the number of dimes (x) in his pocket.
possible choices:
a.) 0.10(x+4)+.05x=1.25
b.) .05(x+4) + .10x=1.25
c.) 0.10(4x) + .05x = 1.25
d.) 0.05 (4x) + 0.10x = 1.25

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.

Which of the following is missing in the explicit formula for the compound interest geometric sequence below?

Asmall book publisher knows that 26 books weigh 41 lbs. how much do 40 books weigh?