Sandra bought 30 t-shirts at the clothing store. 20% of the t-shirts were blue and half of the t-shirts were black. how many of the t-shirts were neither black nor blue?

So you have 20% of blue and 50% of black.
So you have 70% in total that are both blue and black.
100%- 70%= 30%
So that means 30% were neither blue or black.
Do a proportion
30/100= x/30
30 x 30= 900
900 divided by 100= 9
Answer is 9 shirts are neither blue or black

Chope you get it right gl

Im not that good with division but i think 5 is -6but dont quote me on thatim not the best in division but thats my answer