Answer:
...
Step-by-step explanation:
Change you’ll receive is = 0.09
you can only buy 11 because if you divide 20/11 it will give you 1.81 and if you multiply 11x 1.81 it will give you 19.91 which is close to $20 & that’s the most you can buy .
An = a1 + (n-1)d
an = 27 + (n-1)(-6)
25 a² + 20 ab + 4 b²
for formula

find u,v such that: u.v = a
and u+v = b then group according to

=

factor out 5a from :

factor out 2b from :

=

factor out :

=

Refine:

hope this helps!.
The dependent variable is the total number of paintings.
The total number of paintings depends on the number of weeks that have passed.
<span>This scenario is a function because for each week that passes, there will be exactly one total number of paintings.</span>