A rational number is such that when you multiply it by 5/2 and add 2/3 to the product you get -7/12. What is the number?

Let a, b, c, k, be a rational number such that k is not a perfect cube. If

a + b k^1/3 + ck^2/3 = 0. Then prove that a = b = c = 0.

How many irrational numbers lie between √2 and √3. Write any 3.

Express in p/q form.

Find the value of the rational numbers a and b if