Răspunsuri

2014-09-22T19:10:58+03:00

3s=5p   4p=11c   5c=24r     c=24r/5   p= [11×24r/5] /4 = 66r/5   s=5×66r/5·3 =22r   2s= 44r ; adica, 44radiere pot fi cumparate cu 2 stilouri
4 4 4