By increasing the number of blue widgets supplied
Given:
3,6,9,12,15,18...
We need to find the difference.
The difference between 3 and 6 is 6-3 =3.
The difference between 6 and 9 is 9-6 =3.
The difference between 9 and 12 is 12-9 =3.
The difference between 12 and 15 is 15-12 =3.
The difference between 15 and 18 is 18-15 =3.
Recall that linear have equal differences.
We get an equal difference between each value.
The form of the equation is

Hence the given is linear.
Answer:
The perimeter of the square is 76ft.
Answer:
1500÷30=50
40× 50=2000
2000-1500=500.
therefore the answer is500
I think they are similar because they are both solving for a certain number (sum, product quotient)