Fix number systems answers for part 1 and part 2

Author: RomanSanaye

number-systems/Part-1.md

@@ -22,6 +22,7 @@ Q5: What is 10101 + 01010?
 Answer: 11111
 
 Q6: What is 10001 + 10001?
+Answer: in binary if we add them it ll be 100010;
 Answer: 10001 = 17 + 17 = 34 decimal = 100010 binary
 
 Q7: What's the largest number you can store with 4 bits, if you want to be able to represent the number 0?
@@ -49,6 +50,6 @@ Q14: Convert the hex number B to decimal.
 Answer: 11
 
 Q15: If reading the byte 0x21 as a number, what decimal number would it mean?
-Answer:
+Answer: it ll be 33 in decimal.
 
 Q16: Continues in Part-2

number-systems/Part-2.md

@@ -13,11 +13,11 @@ Q17: If reading the byte 0x21 as an ASCII character, what character would it mea
 Answer: In the ASCII table 0x21 is !.
 
 Q18: If reading the byte 0x21 as a greyscale colour, as described in "Approaches for Representing Colors and Images", what colour would it mean?
-Answer: 0x21 = 2*16 + 1 = 33 decimal => darkgray => 0 black - 255 white;
+Answer: 0x21 = 2\*16 + 1 = 33 decimal => darkgray => 0 black - 255 white;
 
 Q19: If reading the bytes 0xAA00FF as a sequence of three one-byte decimal numbers, what decimal numbers would they be?
 Answer: splitting the memory into 3 separate 8-bit values ==> AA 00 FF ==>
 170, 0, 255;
 
 Q20: If reading the bytes 0xAA00FF as an RGB colour, as described in "Approaches for Representing Colors and Images", what colour would it mean?
-Answer: strong blue + some red ==> RGB(170, 0, 255)
+Answer: it will be vibrant or bright purple ==> RGB(170, 0, 255)