Fair spinner A has four equal sections labelled 1,2,3,4. Fair spinner B has four equal sections labelled 5,6,7,8. Rest of the question:
Each spinner is spun once and the numbers are added
Work out the probability that the total is 10 or more. Give your answer as a fraction

What are the sotions to the quadratic equation 9x^2=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.

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?