We are doing this in science and i don’t know how to do it

The equation you are going to use is D=M/V. Plug the density number in that the question provided and do the same for volume and solve for m.

Explanation:

11.3=m/6.7

11.3x6.7=m

the transfer for conduction is the heat transfering from the liquid to the spoon

the transfer for convection is the heat rising from the liquid to the air

the transfer for radiation is the heat going through the sides of the cup and to the air

at least that is what i would do