Maya and Fiona have a total of $16. Fiona has $4 more than triple the amount Maya has. Let x equal the amount of money Maya has and y equal the amount of money Fiona has. Which graph can be used to find the amount of money each girl has?

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

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?

If benito is selecting samples of five values from the table, which row will result in the greatest mean? population data row 1 4 2 2 3 3 row 2 3 3 4 3 2 row 3 2 4 3 4 3 row 4 3 4 4 7 3 row 1 row 2 r