A radioactive substance has a half-life of 2,350 years. If 160 grams are present initially, approximately how many grams will be present after 3,000
years?

Which shows the image of rectangle abcd after the rotation (x, y) → (–y, x)?

The multiplication property of zero states that the product of any number and 0 is 0. what must be true about either a or b to make ab=0

Apark is in the shape of a rectangle. the park authorities are planning to build a 2-meter-wide jogging path in the park (shown as the shaded region in the image). what is the area of the jogging path? plz