Ratio of boys to girls = 1 : 3
Unknown constant = x
x + 3x = 24
4x = 24
x = 6
No. of girls = 3 x 6 = 18
Answer:

Step-by-step explanation:
Gradient



Equation of a line

- Sub one set of points into equation

Answer:
1.7
Step-by-step explanation:
Answer:
c. isosceles
Step-by-step explanation:
the base angles are the same