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Using signed 5 bit number signed 2s complement numbers, subtract, -3 from -2. Please show all steps

Multiply 10110(base 2) by 110(base 2). Must use binary multiplication steps

We are creating a new 8 bit floating point binary number format. It will consist of a sign

bit (0 positive, 1 negative), 3 bits for the exponent, and 4 bits for the mantissa. We will be using a -3 offset for the exponent. Assume there is a leading 1 (to the left of the decimal point) for the mantissa. Convert 4A (hex) to floating point decimal format, show all work.