Answer:
Step-by-step explanation:
Problem One
Blue = 5
Black =2
Red = 3
First of all there are 10 marbles, 2 of which are black.
That means that 8 others are not black
You can draw any one of the 8.
P(not black) = 8/10 = 4/5
Problem Two
There are 10 marbles in all
3 of them are red.
P(Red) = 3/10
Answer:
168
Step-by-step explanation:
132, 135, 138, 141, 144, 147, 150, 153, 156, 159, 162, 165, 168
Neither.
This is because one equation is without variables and the other is with variables.
You can cancel out nothing
The answer would be A-72cm^2
