11. The mass of the Earth is of the mass of the planet Saturn.
The mass of the Earth is 5.97 x 1024 kilograms.
Calculate the mass of the planet Saturn, giving your answer
in standard form, correct to 2 significant figures.​

Are the corresponding angles congruent? explain why or why not.

Use sigma notation to represent the following series for 9 terms.

Many newspapers carry a certain puzzle in which the reader must unscramble letters to form words. how many ways can the letters of emdangl be arranged? identify the correct unscrambling, then determine the probability of getting that result by randomly selecting one arrangement of the given letters.