Negative, because Correlation and slope have the same direction (Sxy will be negative)
The numerator is 0, the denominator is -11, the division symbol is -, and the value of the fraction is 0 because the value of the numerator is 0
Answer:

Step-by-step explanation:
The cost is given for <em>1 sweatshirt</em>. To find the cost of 15 sweatshirts, we need to multiply the expression by 15. Let's do this:

This is the expression that represents the cost of 15 sweatshirts.
Answer:
y=2x-1
Step-by-step explanation:
By exterior angle of triangle:
17x+4+8x+1=80
x=3