Each Tube costs $2.65
50.35 divided by 19= 2.65
here the length AB is the difference between 17 and -34.
i.e. AB=17-(-34)=17+34=51 units
Total change > $42.00
Explanation:
Change for each week
→
$
6.00
This ran for 7 weeks so total change:
→
7
×
$
6.00
=
$
42.00
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14 weeks. 56 divides by 4 to get 14
