For the equation y+1=-3(x-5) the line contains the point (5,-1) and has a slope of?

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.

We have 339 ounces of jam to be divided up equally for 12 people how muny ounces will each person get

Here is another math questions. i will keep asking different questions. 4^2x=6