Hello!
You first have to find the area of the square grid
To find this you multiply the sides
14 * 14 = 196
Next you have to find the area of the triangle
To find the area of a triangle you use the equation

h is height
b is base
Put in the values you know

Multiply

The area of the triangle is 49 inches squared
You divide the area of the triangle by the area of the square
196 / 49 = 4
The answer is 4 triangles
Hope this helps!
3 and 4/9 would be the answer to this.
john can clean 6 pools in 10 hours bc i think you just have to multiply 3/5 by 10
He would notice that the numbers are starting at two and increasing by 2 each time. Also, all the numbers are even.
The pattern is that you are simply counting by 2's.
2, 4, 6, 8, 10, 12, ....