Need ..will reward with lots of points. try to make your answer simple!
i need the answers in decimal form..
carnival wilson gets a flu shot that breaks apart over time. on the day of the vaccination, he has 500 ml of the solution. after one day, he has 400 ml in his system. after two days, there was 320 ml. after three, there was 256 ml.
what is the exponential equation for this problem?
what is the decay factor?
what is the decay rate?

An airplane consumes fuel at a constant rate while flying through clear skies, and it consumes fuel at a rate of 64 gallons per minute while flying through rain clouds. let c represent the number of minutes the plane can fly through clear skies and r represent the number of minutes the plane can fly through rain clouds without consuming all of its fuel. 56c+64r < 900056c+64r< 9000 according to the inequality, at what rate does the airplane consume fuel while flying through clear skies, and how much fuel does it have before takeoff? the airplane consumes fuel at a rate of gallons per minute while flying through clear skies, and it has gallons of fuel before takeoff. does the airplane have enough fuel to fly for 60 minutes through clear skies and 90 minutes through rain clouds?

It says factor each expression 49x-28?

Sketch one cycle if the cosine function y=2cos2theta