C. 6 pens for $6.42
Divide to find the number for one pen. then multiply
Answer:
s=5c+20
Step-by-step explanation:
hope this helps
Answer:
<h2>x - 4y = 8</h2>
Step-by-step explanation:
The point-slope form of an equation of a line:
<em>m</em><em> - slope</em>
The formula of a slope:
============================================
We have the points (-4, -3) and (12, 1).
Substitute:
Put the volume of a slope and the coordinates of the point (12, 1) to the equation of a line:
The standard formula of an equation of a line:
Convert:
<em>multiply both sides by 4</em>
<em>add 4 to both sides</em>
<em>subtract x from both sides</em>
<em>change the signs</em>
Answer: D = x'10 − 10x'8 + 40x'6 − 80x'4 + 80x'2 − 32
Step-by-step explanation:
Answer:
option d is correct
20
Step-by-step explanation:
Formula for permutation is given by:
Given the expression:
here, n = 5 and r = 2
then;
⇒
Simplify:
Therefore, the value we get, 20