Question

Laura ordered blue and black pencils. She received 110 pencils and 21% of them were black. About how many pencils did Laura receive

Answer 1

she received 110 pencils of which 22 were black

Explanation:

'about how many' means we can round 21% to 20% to get an approximate, versus an exact, number of pencils

therefore, 20% of 110 means we can multiply 110 by .20 to give us 22