#2 is 62,000 because if you subtract 84,500 by 22,500 this will then equal 62,000
#3 then equals 9,000 because 37,100 subtracted by 28,100 equals 9,000.
Answer:
3+x=12
x=9
Step-by-step explanation:
To solve this question, you can subtract 3 from 12 to get that Kathy started with 9 pens :)
To find a perpendicular line, you need to find the negative reciprocal of the slope.
-2/5 flips into -5/2
Since -2/5 is negative, -5/2 turns positive, so 5/2.
Therefore, the slope of a line perpendicular to Y = -2/5x + 4/5 is 5/2
