Marks $120 bike cost only $80 two years ago. the price of $120 is what percent increase over the previous price of $80?

Select all the correct locations on the table. consider the following expression. 76.493 select "equivalent" or "not equivalent" to indicate whether the expression above is equivalent or not equivalent to the values or expressions in the last column equivalent not equivalent 343 equivalent not equivalent 49 78.498 78.498 75.493 equivalent not equivalent 75.7 equivalent not equivalent

Which statement best describes how to determine whether f(x) = x squared- x +8 is an even function ?

Can someone show me step by step how to do this?