There are 81 pencils in a box. abigail removes 5 pencils, barry removes 2 pencils, cathy removes 6 pencils and david adds 5 pencils to the box. how many pencils are left in the box?

73 pencils

Step-by-step explanation:

There are 81 pencils in a box.

Abigail removes 5 pencils, thus we have 81-5 = 76 left

Barry removes 2 pencils,  it becomes 76-2 = 74

Cathy removes 6 pencils, now it is 74-6= 68

and David adds 5 pencils to the box,

Now we have 68+5=73 pencils left in the box.

idk i would have to be there to under stand it

step-by-step explanation:

idk i would have to be there to under stand it

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5