Answer:
$81.70
Step-by-step explanation:
15.95 x 4 = 63.80
8.95 x 2 = 17.90
63.80 + 17.90
Answer:
y2 = m(x2 - x1) + y1
Step-by-step explanation:
Given the slope formula :
m = (y2 - y1) / (x2 - x1)
To obtain an equivalent expression :
We cross multiply :
m(x2 - x1) = y2 - y1
Making y2 the subject ;
Add y1 to both sides
m(x2 - x1) + y1 = y2 - y1 + y1
m(x2 - x1) + y1 = y2
y2 = m(x2 - x1) + y1
The mean of a sequence of numbers is the average.
The true statement is: 
The given parameters are:


The mean of a dataset is calculated as:

So, we have:

Multiply both sides by m

When the sequence is split into two, we have:


Where:

So, we have:

Hence, the true statement is: 
Read more about mean and averages at:
brainly.com/question/16217700
78 could be seventy-eight, 78 over 1, and 78/1.