Answer:

Step-by-step explanation:
We are going to use the identity
because this identities right hand side matches your expression where
and
.
So we have that
is equal to
.
X+y = 42
x-y = 8
x = 8+y
Substitute it in 1st equation,
8+y+y=42
2y = 34
y = 17
Substitute it in 1st eq.,
x = 42-17 = 25
So, the two numbers are 25 & 17
Hope this helps!
I cant see the triangle so its kinda hard to know
Answer:
Inequality Form:
n < 4
Interval Notation:
(-, 4)
God bless you have a beautiful blessed day and I hope this makes it!