Answer:
7
Step-by-step explanation:
brainliest answer maybe?..
Answer:
D. Yes, because the amount of money on her gift card should decrease each week.
Step-by-step explanation:
To be more specific, it should start with $75 on the y-axis and decrease by $5 each week (on the x-axis). The graph follows this pattern.
First, subtract 2/3 from both sides and you get

Then multiply both sides by 6/5 and you get
Answer:
21+/-sqrt(253)=x
So one value for x is 21+sqrt(253)
and another is 21-sqrt(253)
Problem:
Given (21,7) and (x,1), find all x such that the distance between these two points is 17.
Step-by-step explanation:
Change in x is x-21
Change in y is 7-1=6
distance^2=(change in x)^2+(change in y)^2
17^2=(x-21)^2+(6)^2
289=(x-21)^2+36
Subtract 36 on both sides:
289-36=(x-21)^2
253=(x-21)^2
Take square root of both sides:
+/-sqrt(253)=x-21
Add 21 on both sides:
21+/-sqrt(253)=x