Answer: the correct is x=1,
Step-by-step explanation:
Graph each side of the equation. The solution is the x-value of the point of intersection.
x=1
Answer:

Step-by-step explanation:
49/28 is 7/4
Applying the inverse law
u^2-6
u^-4
therefore 
Answer:
$38.5
Step-by-step explanation:
First we need to convert 250 centimeters to meters:
250 cm = 2.5 m
To find how much did Mimi pay for the fabric, we can use a rule of three:
One meter of fabric costs $15.40, so what is the cost of 2.5 m?
1 m -> 15.4
2.5 m -> x
x = 15.4 * 2.5 = $38.5
Mimi will pay $38.5 for the 250 centimeters of fabric.
This is an arithmetic sequence.
d= 0.5-3=-2.5
d= - 2.5
a(1)= 13
a(n) = a(1) +d(n-1)
a(n)=13-2.5(n-1)=13-2.5n+2.5= 15.5 - 2.5n
a(n)= 15.5 - 2.5n
Answer C. a(n)= 15.5 - 2.5n