A. Directions: Study the given number patterns. Find the next term. Write the letter of the correct answer on the space provided before each number.
A
1. 25, 30, 35, 40, 45,
2. 11, 22, 33, 44, 55, 66,
3. 1, 4, 9, 16, 25, 36,
4. 9, 11, 15, 21,
5. -11, -9, -7, -5,
B
a. 31
b. 50
c. -3
d. 77
e. 49
f. -2