Can I please have some help?

Ihave trouble finding the nth term of a linear sequence

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

The sum of the squares of two numbers is 8 . the product of the two numbers is 4. find the numbers.