Answer:
1/4
Step-by-step explanation:
printed part = 210
total pages = 280
probability to open printed page 210/280 =3/4
probability to not open printed page = 1 - probability to open printed page = 1 - 3/4 = 1/4
280-210=70
P=70/280=1/4
x= -1
y=2
6x+5y=4
6x-7y=-20
Subtract
I tried looking it up, and i found 15 square units. sorry if its wrong :(
