Well im not to sure about this one loook it up
Answer:
C. 101 - 5(n - 1)
Step-by-step explanation:
d = (26 - 71)/(16 - 7)
d = -45/9
d = -5
a7 = a1 + (7-1)(-5)
71 = a1 - 30
a1 = 101
an = 101 + (n - 1)(-5)
an = 101 - 5(n - 1)
Heya!
Answer is 
<u>EXPLANATION</u><u> </u><u>:</u><u>-</u>
Given
x-y= -5
x-y=1³
Substitute value of x - y as 1³ in first equation,
=> x-y= -5
=> 1³ = -5
As we can't do anything more to solve, we can finally write as :

~ Benjemin360
Answer:
slope = 3
Step-by-step explanation:
Given a line with slope m then the slope of a line perpendicular to it is
= - 
Given m = -
, then
= -
= 3
3(10)^2 = 900
300 = 900
false; X=10 is not a solution