It's all on the picture please answer ​

60 units squared

Step-by-step explanation:

use for mula A= bh/2

15*8=120

120/2= 60

A=60

60

Step-by-step explanation:

area of triangle = (base x height) : 2

base = 15

Height = 8

= ( 15 x 8 ) : 2

= 120 : 2

= 60

25.2

step-by-step explanation:

2+4x6-8/10= 25.2

a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.