How do you write in scientific notation?

What is the area of triangle abc if a = 8, b = 11, and c = 15?

What is 100,000 times 1/100,000, using the standard method of multiplication? write the answer as 10 to a power.

Alina fully simplifies this polynomial and then writes it in standard form. xy2 – 2x2y + 3y3 – 6x2y + 4xy2 if alina wrote the last term as 3y3, which must be the first term of her polynomial in standard form? xy2 5xy2 –8x2y –2x2y