Answer:

Step-by-step explanation:
we have

For 
substitute the value of x and the value of y in the expression





Answer:
See attachment
Step-by-step explanation:
The negative in front flips it over the y axis
The +1 moves it left
Have a great day!!!
(Also can I please have Brainliest, I need it to level up!)
Answer:
1.25.
Step-by-step explanation:
The common ratio r is 1/5 and the first term a1 = (1/5)^(1-1) = 1.
Sum to infinity = a1 / (1 - r)
= 1 / (1 - 1/5)
= 1 / 4/5
= 5/4
= 1.25 (answer)

so.. let's us eliminate, say "z" first, so for that, let's pick the 1s and 2nd equations there

so, that's our first two-variables resultant
let's pick other two, and again, eliminate the same "z" variable, this time, let's use the 2nd and 3rd equations

now, we have two two-variables equations, let's use them then
and say, we'll eliminate the "y" variable from them

Answer:
306
Step-by-step explanation:
6*9=54
54*4=216
216+90=306