Polygon MNOPQ is dilated by a scale factor of 2 with the origin as the center of dilation, resulting in the image M′N′O′P′Q′. The coordinates of point M are (5, 1), and the coordinates of point N are (6, 3). What is the slope of line segment M’N’?

Pranza plotted point a in the coordinate plane below.

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.

Is triangle jkl congruent to triangle rst? if so, what is the scale factor?