What is the answer to 739 rounded to the nearest hundred is

[10 points, algebra 2-simplifying complex fractions]according to my answer key the restrictions are -1 and 4. but why not positive 1?

Alicia puts $400 in a bank account. each year the account earns 5% simple interest. how much money will be in her bank account in six months?

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10