Answer:
696
Step-by-step explanation:
The formula of a slope:

We have the points (-2, 2) and (-4, -2). Substitute:

<h3>Answer: the slope = 2</h3>
Answer:
-6
Step-by-step explanation:
-6/b-50=-49
step1;collect like terms
-6/b=-49+50
-6/b=1
step2;cross multiply
-6/b=1
-6=1b(1b can also be regarded as b)
b=-6
Looking at the two black dots
5 bulbs cost $9
Divide total cost by number of bulbs bought:
9 / 5 = $1.80 per bulb.
10 bulbs cost $18
Divide total cost by number of bulbs bought:
18 / 10 = $1.80 per bulb
The cost for one bulb is $1.80
It is given in the question that

And 
can also be written as

Therefore,


That gives,
