Do the following senarios model the equation y=2x+5

There are initially 5 chickens on the farm. Each month thereafter the number of chickens is 2 times the number in the month before. YES/NO?

Nina earns $2.00 for each Enjoy the City book she sells. Each time she sells a book she also gets a five-dollar tip. YES/NO?

The temperature at 8:00 AM is 5 degrees Celsius and increases 2 degrees per hour. YES/NO?

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.

Aboard 60 in. long is cut two parts so that the longer piece is 5 times the shorter. what are the length of the two pieces?

Two cities a and b are 1400km apart and lie on the same n-s line. the latitude of city a is 23 degrees. what is the latitude of city b. the radius of the earth is approximately 6400km.