Only 2.7 and 2.9

2.7 Construct a table for the equivalence of powers of 2, from 2 to 224 in hexadec- imal numbers. 2.8 Starting with the fact that r is represented in base r as a 1 followed by n zeros, demonstrate that the decimal equivalent for the binary number consisting of n l's is 2" 1. 2.9 Make the following conversions: a. 10011.101B to decimal, hexadecimal, and octal b. 2A1F.Bh to binary, octal, and decimal c. 275.32Q to binary, hexadecimal, and decimal d. 1327.76 to binary (up to 6 binary fractional digits)