Answer:

Step-by-step explanation:
Answer:
d
Step-by-step explanation:
because a - b is minus 1. and a - b is plus 2. rise over run equals -1 / 2. ur welcome
Answer:
(0,3) and (1,0)
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 :)