Sin 64degrees=cos x what is the value of x?

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

Evaluate the following expression 1/3^2

The transitive property of equality states that: o if a = b, then bra o if a = b, then ac = bc o if a = b and b= c, then a = if a = b and c= c, then a + b = b + c