Answer:
a) 8 pounds.
b) [26,42]
c) 
d) Weight above 42 pounds, so she cannot.
Step-by-step explanation:
a. What is the margin of error?
Within 8 pounds, so margin of error of 8 pounds.
b. Express the acceptable weights as an interval.
34 - 8 = 26
34 + 8 = 42
[26,42]
c. Write an expression in the format to represent the interval.

d. Sally weighs 44 pounds. Can she play in the bounce house?
Weight above 42 pounds, so she cannot.
Answer:
octagon, regular
Step-by-step explanation:
it has eight sides and the side all measure the same amount
Answer:
.
Step-by-step explanation:
The given conic has equation;

Divide through by 9.

.
This is an ellipse centered at the origin;
This ellipse has been translated so that the center is now at;

The translated ellipse has equation;
.
Clear the fraction;
.
Expand;
.
.
Write in general form;
.
.
The correct choice is D