960
0.25 multiplyed by 2 = 0.5 multiplyed by pi =1.57
4480
4
1/2 or .5
7 multiplyed by 4 equals 28
o ....anthing multiplyed or divided by o is o
It means the numbers multiplyed by itself (squared)
It is: 1/3 times 6 = 2
90
They are: 2*5*13 = 130
Yes, 480 / 2 = 240
240