Answer:
<em><u>blue</u></em><em><u> </u></em><em><u>pens</u></em><em><u>=</u></em><em><u>288</u></em>
Step-by-step explanation:
<em>blue</em><em> </em><em>pens</em><em>=</em><em>720×40%</em>
<em>blue</em><em> </em><em>pens</em><em>=</em><em>720×40/100</em>
<em>blue pens</em><u>=</u><u>288</u>
Answer:

Step-by-step explanation:

Answer:
20 so the fractions would be 3/4=15/20 and 9/10=18/20
Step-by-step explanation:
because 4 x 5 = 20 and 10 x 2 = 20
I think that it is 270. 5400/180 = 30 8100/30 = 270
Answer:
These equations are incomplete so I cant solve it
Step-by-step explanation: