How do I find energy (E) when only given resistance (R) and power(P) ?

Clothes dryer uses about 7 amps of current from a 240 volt line. how much power does it use?

Which of the following is the main energy source for the sun? a. fission of hydrogen b. fusion of hydrogen c. fusion of helium d. fission of iron

Aa a of 22 m/s at an of 36.9 .be . a. b. c. (3)x y of? (3)go? (4) () it to to ?