The half-life of a certain element is 100 days. How many half-lives will it be before only one-eighth of this element remains?

2

3

8

12.5

343 is 35% of what number

Alejandro would like to start a new business. His friends have suggested he go into merchandising. But he's confused about what exactly merchandising is. Which sentence provides Alejandro with the most accurate description of merchandising? A.

If a is a negative number and b is a negative number, which expression is always negative?

Select the correct name for the following line.

Solve the equation 8x - 12=5x+15

Find a polar equation of the form r=f (θ) for the curve represented by the cartesian equation x=-y2.

How can you solve a discount percentage the easiest

What is the median score?

Which translation transformed the parent function, f (x), to g (x) ? a translation right 2 units a translation left 2 units a translation up 2 units a translation down 2 unit

What is the median of this set of dаta: 10, 11, 12, 12, 15, 19, 20, 21, and 22? Express your answer as an integer. Question 7 options: 12 15 16 19