A set of symbols that expresses a mathematical rule is called a
-base?

-square unit?

-formula?

-area?

-perimeter?

Pls if a cow has a mass of 9×10^2 kilograms, and a blue whale has a mass of 1.8×10^5 kilograms, which of these statements is true?

Use multiples to write two fractions equivalent to 7/9. 14/18, 8/10 6/8, 21/27 10/12, 28/36 14/18, 21/27

Write the equations in logarithmic form 9^4=6,561