Answer:
$1.5
Step-by-step explanation:
if each dozen cost $18, we need to divide.......18/12........because 12 is a dozen.
18/12 = 1.5
if the base=x
length of one leg is =4x-6
length of the other leg is also =4x-6 (isosceles)
P=x+4x-6+4x-6=51
9x-12=51
9x=51+12
9x=63
x=63/9=7
x=7
x=2/5
7x+8=12-3x
7x=12-3x-8
7x=-3x+4
7x+3x=4
10x=4
x=4/10
