Answer:
I think it would be the bottom left angle, x + 20 = 20x.
Why the others are smaller:
10x (x + 10)
12x (2x + 10)
10x (x + 10)
Step-by-step explanation:
By the chain rule,


We also have

,

, and

, so at this point we get
Answer:
D.
Step-by-step explanation:
If you follow the pattern, four boxes should use 21 toothpicks.
Given:
1 Van and 4 buses filled with 195 students.
1 Van and 5 buses filled with 241 students.
Let x and y be the number of students in Van and number of students in bus.

Subtract equation (1) from equation (2)

Substitute y=46 in equation (1)

Number of students that van can carry is 11.
Number of students that bus can carry is 46