8
A. Delivery is $20. One cord is $120.
B. 1 1/2 cord costs $200. ($180 for the cord and $20 for the delivery)
(I can’t see the full problem for 9)
1/16 of a cup is in each brownie
I think you count the squares in the middle or radius ?
S(8)=((100×(1−(50÷100)^(8))÷(1−50÷100)))
=199.22
60% is 0.60 so you do 0.60 x 29 which = to 17.4
so your answer is 17.40 or 17.4 is 60% of 29
