14.25+2.30=16.55 so, dr spent $16.55 on school supplies
Answer:
x-y=4
Step-by-step explanation:
(y+4)/(1+4) = x/5
(y+4)/5 = x/5
y+4 = x
-x+y= -4
x-y = 4
Answer:
1st problem:
Converges to 6
2nd problem:
Converges to 504
Step-by-step explanation:
You are comparing to 
You want the ratio r to be between -1 and 1.
Both of these problem are so that means they both have a sum and the series converges to that sum.
The formula for computing a geometric series in our form is
where
is the first term.
The first term of your first series is 3 so your answer will be given by:

The second series has r=1/6 and a_1=420 giving me:
.
Answer:

Step-by-step explanation:

Answer:
y=-4x-25
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(-1-3)/(-6-(-7))
m=-4/(-6+7)
m=-4/1
m=-4
y-y1=m(x-x1)
y-3=-4(x-(-7))
y-3=-4(x+7)
y=-4x-28+3
y=-4x-25