Write in slope-intercept form,
y=-1/2x+4
If each notepad costs $.65, it would cost $2.60 to buy four, so she does not have enough
The total ball in the bag is 4 + 2 = 6 balls. Their are 4 red balls and 2 blue balls.
If they are drawn singly the probability that 2 blue balls are counted can be expressed as follows