Circumference of a circle = 
Circumference = 
3 chicken sandwiches at $2.75 each: 3*2.75= 8.25
2 cokes at 1.19: 2*1.19= 2.38
Tax: 0.64
8.25+2.38+0.64= 11.27
He gives you 11.52, to find how much you need to give him back, subtract how much he gives you by the amount that is charged (11.27)
11.52-11.27= $0.25
Answer:
Its B
Step-by-step explanation:
1^3 is 1
$7.9 cost of one pack
10 packs cost is $79
She pays $29 + Voucher
From the total $79 we substract the $29 she paid with cash or card.
79-29=50
So the value of the voucher is $50
PS: celia should cut on chocolate. Not healthy for her :)