Answer:
c) I think'
Step-by-step explanation:
$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 :)
The slope is 3 and y-intercept is 4
y=mx+b
Simplify the radical, then combine the numbers.
-131
