At what temperature can nuclear fusion of hydrogen naturally occur? (answer to 1 sig. fig.)

Could someone . i have tried to solve myself but my calculation is off

In the circuit shown below, with each bulb holding a resistance of 60 ohms, how many amps of current are flowing? express your number as a decimal.

Frank just graduated from eighth grade. assuming exactly four years from now he will graduate from high school how many seconds does he have until his high school graduation