Answer:True
Step-by-step explanation:
Given pyramid with octagonal base. Image of the pyramid attached below:
We know the formula of Lateral Area of pyramid = 
where p represent the perimeter of the octagonal base
and l represent the slant height of the pyramid.
109.9 = 
Solve for p
p = 32.81 cm
Perimeter of octagonal base (all sides are same) = 8*s
where s represent the side of octagon
8s = 32.81
Solve for s
s = 4.1 cm
Side of the octagon = 4.1cm (option D)
Answer:
1.65
Step-by-step explanation:
0.99/3 = .33
.33 x 5 = $1.65
Yes, there was a mistake in applying the distributive property. If you have to perform

you have to multiply both terms in the parenthesis by 3, not just the first one.
So, the correct expansion would be
