49-28=21
51-32=19
23x7=161
14x5=70
Answer:
$72 would be the retail price
Step-by-step explanation:
To find it it is
ax^2+bx+c
if the first term (a) is 1 then c=b/2
b=-1/4
(-1/4)/2=-1/4 times 1/2=-1/8
k=-1/8
56 6 repeating when rounded to the nerest .1 is 56.7
