14. If one half-life is the amount of time it takes for a radioactive isotope to decay by a factor of 2, approximately which percent describes how much of the initial quantity of a substance would
remain after 2.3 half-lives?

Which ordered pair is a solution to the system of linear equations? 2x + 3y= 6 –3x + 5y = 10

Two line segments are shown in the figure below. suppose that the length of the line along the x-axis is 6, and the length of the hypotenuse of the triangle is 10. what is the equation of the hypotenuse line (shown in red, below)?

Askateboard ramp is in the shape of a right triangle what is the height of the ramp