Answer:
$28.95
Step-by-step explanation:
Sam started out with x dollars.
We represent this situation with the following formula:
x - ($4.85 + $7.95 + $7.95) = $8.20.
Then:
x - $20.75 = $8.20.
To isolate x, we add $20.75 to both sides of this equation, obtaining:
x = $28.95.
Sam started out with $28.95.
The graph must pass through the y-axis at y = -4 with a positive slope of 3
Given the expression
Write the given equation in standard form to have:
7x+y=10x-4.
y = 10x - 7x - 4
y = 3x - 4
From the equation, the slope is 3 and the y-intercept is -4
The graph must pass through the y-axis at y = -4 with a positive slope of 3.
Learn more on equation of a line here: brainly.com/question/13763238
Area=1/2 times base times height
base=4
height=3
area=1/2 times 4 times 3
area=2 times 3
area=6 square units
ANSWER
EXPLANATION
The given matrix is a 4 by 4 matrix.
The entry in the intersection of the first third row and the fourth column is denoted
This entry is 8.
Check the attachment for how we got the 8.
Therefore