If m∠abc = 80°, what is m∠dbc? justify your reasoning.
using the angle addition postulate, 20 + m∠dbc = 80. so, m∠dbc = 60° using the subtraction property of equality.
using the angle addition postulate, 20 + 80 = m∠dbc. so, m∠dbc = 100° using the addition property of equality.
using the addition property of equality, 20 + 80 = 100, so m∠dbc = 100°.
using the subtraction property of equality, 80 − 20 = 60, so m∠dbc = 60°.

$3,200 x 7.25% = $3,200 x .0725 = $232 interest monthly

$232 monthly x 12 annual = $2, 784

step-by-step explanation:

step-by-step explanation:

a child is 12 years old, and his father is 32 years older. in how many years will the age of the father be 2 times the age of the child?

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this needs to be the answer format, or else your answer is incomplete.

if the number of years is x, then the equation is

in __ years