Kirby claims that the missing side lengths P T and Q S are parallel because they seem to be drawn that way in the diagram. Which of the following statements best explains whether P T and Q S are parallel?

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

Solve this system of equations. 12x − 18y = 27 4x − 6y = 10

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.