Please solve the the 7, 8, 9, and 10

Thanks.

Convert the following numbers with the indicated bases to decimal: 4501_8 and 1A9_16. Express the following numbers in decimal: 1100111.0101_2, D8.9_16 and 73.47_8. Convert the hexadecimal number A5C7_16 to binary and then from binary convert to octal. List the octal and decimal numbers from 1A_16 to 20_16. Using A, B and C for the last three digits, list the numbers from 10_10 to 16_10 in base 13. Convert the decimal number 457_10 to binary in two ways: (a) convert directly to binary: and (b) convert first to hexadecimal, then from hexadecimal to binary. Which method is faster? Do the following conversion problems: a. Convert 52.65625_10 to binary. b. Convert 0.9_10 to binary Calculate the binary equivalent to 1_ 10/7_10 (both are base 10 numbers) out to 5 places. Then convert from binary to decimal. How close is the result to 1/7? Add and multiply 1101_2 and 110_2 without converting them to decimal. Perform the following division: 1101010_2 + 1011_2