Summary over shopping for school supplies. each purchase were different quantities of the same notebook and thumb drive. sam bought for notebooks in one thumb drive for $32. marie about three notebooks and two thumb drives for $39. find the cost of each notebook and each thumb drive.

idk lol

step-by-step explanation:

here is your mark brainliest

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.