A number x rounded to 1 decimal place is 12.3 .What is the error interval for x?

Afamily went out to dinner and their bill was $113.if they want to leave a 19% tip, how much should they leave.

Atown has a population of 12000 and grows at 3.5% every year. what will be the population after 7 years, to the nearest whole number?

Prove the converse of the pythagorean theorem using similar triangles. the converse of the pythagorean theorem states that when the sum of the squares of the lengths of the legs of the triangle equals the squares length of the hypotenuse, the triangle is a right triangle. be sure to create and name the appropriate geometric figures.