You begin on the first floor. You go up 5 floors, deliver a package. You go up 7 floors to deliver the next package. Then you receive a call to go down 12 floors and pick up a package to be mailed. You take the elevator 22 floors to deliver the final package.

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?

Me asap! what is the slope of this line? enter your answer in the box.

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.