One student burned a piece of paper weighing 4.8 grams. The table below shows the mass of the materials formed by burning the paper.

Material formed Mass of material (in grams)
Ash ?
Smoke 2.2
Dust 2.5

What is most likely the mass of the ash formed on burning the piece of paper?
0.1 grams
0.3 grams
4.6 grams
4.7 grams

(01.03 mc) which of the following is a step in simplifying the expression x multiplied by y to the power of 2 over x to the power of negative 3 multiplied by y to the power of 3, the whole to the power of negative 4. select one: a. x to the power of negative 4 multiplied by y to the power of negative 2, the whole over x to the power of negative 7 multiplied by y to the power of negative 1. b. x to the power of negative 4 multiplied by y to the power of negative 8, the whole over x to the power of 12 multiplied by y to the power of negative 12. c. x to the power of negative 4 multiplied by y to the power of negative 8, the whole over x to the power of negative 3 multiplied by y to the power of 3. d. x to the power of negative 4 multiplied by y to the power of negative 2, the whole over x to the power of negative 3 multiplied by y to the power of 3.