If the bike cost $80 and got it with a discount to $60 the answer is 20%
So if I had this problem I would multiply 21 x 34= 714 then I would divide it by 14 which would get me 51. There would be 51 blocks in each group!
The Angle formed by an arc on the centre of the circle is double the angle made by the same arc on the circumference of the circle.
So,
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(20 + 22 + 17) - 7 - 12 - (9 - x) = 37;
59 - 19 - 9 + x = 37;
31 + x = 37;
x = C) 6
I'm not so positive,,, but I believe that the total average of the first two workers is 25
