can you solve all please thank you so much. 1. Calculate the new resistance of a 25.0 ohms resistor when placed in a tem

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can you solve all please thank you so much.
1. Calculate the new resistance of a 25.0 ohms resistor when placed in a temperature of -75*C. The temperature coefficient of this resistor is 0.0068.
2. a) How long does it take for a current of 0.15 A to transfer a charge of 16 C?
b) How many electrons are transferred during this time?
3.a) How much energy is required to heat up soup in a microwave if it draws 3.0 A from a 120-V outlet for 2.5 minutes?
b)If the soup requires 85,000 J of energy to boil it, how many minutes does the microwave have to run for?
4. A 25.0 m length of wire 1.80 mm in diameter has a resistance of 2.80 ohms. What is the resistance of a 30.0 m length of wire 3.80 mm in diameter made of the same material?