Answer:
$5.38 per pound
Step-by-step explanation:
70/13=5.384615
5.38x13=69.94
Question:

Answer:


Step-by-step explanation:
Given

Required
Simplify
In trigonometry:

So, the expression becomes:

Simplify the denominator




Express the fraction as:





Rationalize



In trigonometry:

Hence:


I believe that she will need 56 square tiles. You get this by doing 7 times 8 which is 56. Then, since each tile is a one-foot square tile, you would need 56 tiles to cover the whole floor.
To answer this, we need the original equation.
The answer is A, 63 degrees, because when two angles complement each other they add up to 90 degrees. 63 + 27 = 90.