Answer:7
Step-by-step explanation:
42-35=7
m+f=38
(f-4)^2=m-4
f^2=m IF their age is 30 combined
4^2=16
16=16
Fred is 4, Mabel is 16.
Answer:
B
y≥-2x-2
put x=0,y=0
0≥-2
which is true.
so (0,0) lies on it.
graph is a solid line.
so B satisfies it.
6 units
29
Assume the number as x
2x - 9 = 49
2x = 58
x = 29