Answer:
One
Step-by-step explanation:
For unique triangles with 3 sides, the sum of the two shorter sides must be greater than the third side.
Shorter sides: 6 cm and 2.5 cm
Longer side: 6.5 cm
6 + 2.5 = 8.5
As 8.5 > 6.5 this is a unique triangle
As the side lengths are fixed, only one unique triangle can be formed.
$812 billion will be spent at the restaurants if the trend continues.
Explanation
It is given that the amount spent on restaurants increase by 6% every year.
The amount spent on each of the following years can be determined by solving it using the method used to calculate compound interest.
Amount spent in 2004=$510 billion
Annual rate of interest=6%
we have to calculate the amount spent in 2012
number of years n=8
Amount spent= 
Answer:
15.2
Step-by-step explanation:
Hi there
One pound of salmon will cost $13, and one pound of tuna will cost $8.
Here's why.
X will be the cost of pound of salmon, and y will be the cost of a pound of tuna.
| 15x+8y=259
| 12x+6y-204
6y = 204-12x
y=34-2x
15x+8(34-2x)=259
272-259=16x-15x
x=13
y=34-2*13
y=34-26
y=8
So, again...
1lb Salmon : $13
1lb Tuna : $8
Paralell to the y axis means that thte equation is x=something
(x,y)
(1,-1)
x=1 is the equation
