Radium has a half life of 1660 years. If the initial amount of radium is 200 grams, how much will remain in 500 years?

The length of a rectngle is 8/3 times as great as its widthwhat is the width if the length of a rectangle is 24 ft.

A concert hall seats 7689 people there are eight concerts in June and a ticket was sold every for every seat how many tickets were sold in June?

Among all rectangles that have a perimeter of 134, find the dimensions of the one whose area is largest. write your answers as fractions reduced to lowest terms.

Just one more question lol. A clothing store ran advertisements for a special sale. The stores ads read "Buy one at regular price, get a second one for half price.

Is 20/46 greater than or less than 1/2

A group of scientists studied the effect of a chemical on various strains of bacteria. Strain A started with 6000 cells and decreased at a constant rate of 2000 cells per hour after the chemical was applied.

How can I tell if a triangle with side lengths 10, 24, and 26 is a right triangle?

Determine whether the statement is always, sometimes, or never true: 1) A horizontal line is parallel to the x-axis

15% of what number is 1?

Does parallel lines meet to form an acute angle?