Let's go through each part of the question step by step.
### 1. Write the Roman numerals for each of the following Hindu-Arabic numbers:
a. 7
- The Roman numeral for 7 is VII.
b. 12
- The Roman numeral for 12 is XII.
c. 15
- The Roman numeral for 15 is XV.
d. 20
- The Roman numeral for 20 is XX.
f. 29
- The Roman numeral for 29 is XXIX.
g. 30
- The Roman numeral for 30 is XXX.
h. 32
- The Roman numeral for 32 is XXXII.
i. 35
- The Roman numeral for 35 is XXXV.
### 2. Write the Hindu-Arabic numbers corresponding to each of the following Roman numerals:
Now, let's work backwards from Roman numerals to the Hindu-Arabic numbers:
a. VII
- The Hindu-Arabic number for VII is 7.
b. XII
- The Hindu-Arabic number for XII is 12.
c. XV
- The Hindu-Arabic number for XV is 15.
d. XX
- The Hindu-Arabic number for XX is 20.
e. XXIX
- The Hindu-Arabic number for XXIX is 29.
f. XXX
- The Hindu-Arabic number for XXX is 30.
g. XXXII
- The Hindu-Arabic number for XXXII is 32.
h. XXXV
- The Hindu-Arabic number for XXXV is 35.
I hope this clarifies how to convert between Hindu-Arabic numbers and Roman numerals!