All you need to do is add them all together and the answer is 22.3 :)
620.25 u calculate 7443 and divide that by 12
1/4
Because......
Dice=6
From 1-6, only 2,4,6 are even numbers( or multiple of 2 )
So 3 ( numbers of even numbers ) /6
There are two dices we need to roll..
So 3/6 X 3/6
We simplify 3/6 by 2 :
1/2 X 1/2
Which equals 1/4
Rate of change=slope
f(x)=y
z=x
59-58/0-3= -1/3
ANSWER: -1/3
1*5=12.75
2*4=9.6
so nine pens cost 3.15
one pen will be 0.35$
so one pencil will be .20$