Ez question plz two trains leave the station at 7: 00 a. m going in opposite directions.  train a is going 20 miles per hour slower that train b.  if they are 200 miles apart at 9: 00 a. m., how fast is train a traveling? 40 miles per hour60 miles per hour20 miles per hour80 miles per hour

Write a polynomial that fits the description: a third-degree polynomial with leading coefficient -4

The table shows the balance of a money market account over time. write a function that represents the balance y (in dollars) after t years.

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered