Answer is B: 150
write two equations
r+s=190
4r+3s=720
solve by substitution
the get r=150 s=40
Answer:
31
Step-by-step explanation:
I can't explain any further......
Answer:
You can substitute
4
as
x
in the first equation because
x
and
4
are equal.
2
(
4
)
+
y
=
29
8
+
y
=
29
y
=
21
Step-by-step explanation:
Answer:
h(h(10))---> h(-4)---->10 ......hOh(10)=10
Step-by-step explanation:
