Answer:
28
Step-by-step explanation:
30+25=55
44+12=56
25+32=57
55+56+57=168
168÷6=28
Answer:

Step-by-step explanation:
First, we need to find the slope, which is defined as the change in y over the change in x:

To find a slope that's perpendicular to that, we just take the negative reciprocal of that slope, which is
.
I hope this helped.
This is easy all you do to find the surface area is to multiply base the number that is across by the height the number that shows the height.The you just multiply those 2 and you got the surface area.For number one the answer is,20.For two the answer is, 6.Need more help ask me under in the comments. If this was helpful please give me brainiest answer. Hope this Helps :D
Here is the work and explained sentence :)
Step-by-step explanation:
x^2+x-6006=0
x^2+78x-77x-6006=0
x(x+78)-77(x+78)=0
(x-77)(x+78)=0
=>x=77 or x=78