The vertex of the parabola is (-2,20) and the y-intercept is (0,-12)
what is the equation of the parabola?

32/80  

91/140

the last one 54 doesn't go into 45. 54/100 ?

step-by-step explanation:

m∠abd = m∠dbc

step-by-step explanation:

given : ab bisects ∠dbc

as we know that bisection means ab divides   ∠dbc   in two equal angles named as   ∠dba and   ∠abc

so, m∠abd = m∠dbc  

because ab bisects ∠dbc.

hence , the first statement m∠abd = m∠dbc is true.