Can someone help me with my math problem? Thank you

Question

Write the integer represented by each of the following:

a. A collection of 9 red counters and 4 black counters.

b. A collection of 7 red counters and 18 black counters.

c. A point midway between –45 and 45 on the number line.

d. A point 13 units to the left of 2 on the number line.

e. A point 8 units to the left of –2 on the number line