Data collected in a survey shows that 60 percent of the buyers are interested in buying a brand of mobile phone and if the total number of buyers are 400 then how many buyers are not interested and also find the central angle of the sector of the pie chart representing this information is

160 not interested and 144*

Step-by-step explanation:

* is the degree sign like the little o

2 over 5

step-by-step explanation:

the 2: 3 ratio is the length of the ac segment to the cb segment total length. this implies that the ratio between segment ac length and segment ab length is 2: 5. point c is 2/5 from a to b, so the required fraction is 2/5.

6mm^3 or .6cm^3

      216

      /   \

  36     6

  /   \     /

6     6   6

factor trees are nice.