Honestly guessed but I need help

6. Write out and sum the non-zero powers of two for the two functions shown. Express output in decimal: (a) B2U5(0x2E) 46 (b) B2T5(02E) 0010 7. Apply the function T2U5 to the two following decimal values. Express the answer as a decimal number. (a) 7 (b) 12 8. Assuming an 8-bit machine that uses 2's complement arithmetic, apply the appropriate casting and express the result as a relational value (true or false): (a) 127==127U (b) 1271U==127 (c) 1U4)+x 10. Write C expressions that evaluate to 1 when the following conditions are true and to 0 when they are false. Assume x is of type int. (a) Any bit of x equals 1. if ((x+0)!=0) (b) Any bit of x equals 0 . if (x0==0) (c) Any bit in the least significant byte of x equal if (x&127>0)