Can someone pls help me with my ela assignments I really need a good grade I’ll pay u 30$ if it’s right

Which expression is equivalent to 3^3 + 2^2?

He mass of a single atom of carbon can be found by dividing the atomic mass (12.01 g) by 6.022 x 10^23. which is the mass of a single carbon atom, correctly written in scientific notation with the correct number of significant figures?

Stacey filled her 1/2 cup of measuring cup seven times to have enough flour for a cake recipe how much flour does the cake recipe calls for