Which number is a prime factor of 210 a.2 to the 6th power b.6 to the 2nd power or 6 squared c.12 to the 6th power. exponents and prime !

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

In chemistry,n molecules of an ideal gas have pressure, volume, and tempersture that stand inthe following relation, where r is constant. solve the equation for n,the number of molecules. pv=nrt

Plz fasttommy has n friends. he wants to give each friend 5 pencils. write an expression to show how many pencils tommy will share