Quotient, implies division, so the quotient of 18 and 2 is 6:
18/2=6
Sum implies addition, so the sum of 22 and 9 is 31:
22+9=31
Now we can subtract the quotient of 18 and 2, '6', from the sum of 22 and 9, '31'.
31-6=25
Answer=25
There are 80 children. 45 of them are girls. The amount of boys is equal to:

That means there are 45 girls and 35 boys.
The ratio of boys to girls is: 
Simplify:

Your answer is 7:9
For number 1.
Since AB + BC = AC
Then
-12x + 11 - 8x -4 = 127
-20x + 7 = 127
X = -6
Ab would then equal 83
Answer:
f(x)⁻¹ = -5/3x - 5
Step-by-step explanation:
y = -3/5x - 3
x = -3/5y - 3
x + 3 = -3/5y
(x + 3)(-5/3) = y
-5/3x - 5 = y
Answer:
Graph (C)
Step-by-step explanation:
If Bob traveled 'y' miles in 'x' hours,
Distance traveled ∝ Time taken to cover the distance
y ∝ x
y = mx
Here, m = proportionality constant Or slope of the line
Since, Bob covered 45 miles in 1.5 hours,
m = 
m = 30 miles per hour
From the given graphs,
Graph (C) shows the slope = 
= 
= 30 miles per hour
Therefore, Graph (C) will show the relationship.