I am unsure about the very last problem but I can help with the first two
1) (y+1)+4
If we combine the numbers 1 and 4, we get +5 and can isolate the numbers from the variable.
This would give us

2) (6*r)*7
remember that we do not have to explicitly state 6*r
Instead, we can write it as 6r
this helps us get rid of the parentheses
now we can write it as

I hope this helps!:)
Answer:
x = 54°
y = 66°
Step-by-step explanation:
x + y = 120° (given)
x = y - 12
Then, y + y - 12 = 120°
(y + y) - 12 = 120°
2y - 12 = 120°
2y = 120 + 12 = 132°
y = 132/2 = 66°
x = y - 12 = 66 - 12 = 54°
There you go :)
Single ready to mingle
Step-by-step explanation:
Answer: z=-190
Step-by-step explanation:
Answer:
We have to evaluate the function p with the numbers on the argument of them, that is:
p(-5) = -11887
p(3)= -191
Step-by-step explanation:
First we are going to evaluate the functions and then to replace x by the corresponding number on the argument:
p(-5)= 2 (-5)^5 -9(-5)^4 -2(-5)^2+12(-5) +2 = -11887
p(3) =2(3)^5-9(3)^5-2(3)^2+12(3)-2 =-191