Osama buys some notebooks and some pens. Each notebook costs $12 more than each pen.
The total cost of 5 notebooks and 2 pens is $64.20.
Find the cost of one pen.

$2.10

Step-by-step explanation:

12*5=60

64-60.20=4.20

4.20 is for 2 pens

4.20/2=2.10

=$2.10

step-by-step explanation:

a cube has 6 sides

the probability of getting 5 on the first cube is 1/6 since only one side of the cube has 5 on it.

there are 3 sides of the cube with even number on it [2,4,6]

therefore the probability of getting even number is 3/6

for both events to happen together, the probability would be

1/6 x 3/6 = 12/36

which simplifies to 1/12