Write an expression to show how you could calculate the total amount David paid.

Total = $100

Step-by-step explanation:

y = total amount

x = amount per hour

b = initial amount cost

m = amount of hours

y=mx +b

y = (5)(15) + (25)

y = 100

an advantage of the standard deviation is that it increases as the dispersion of the data increases. e. the interquartile range is preferred when the data are not skewed or no have outliers. an advantage of the standard deviation is that it uses all the observations in its computation.

.24

step-by-step explanation:

the probability is   .24

the first player had the highest probability of getting a silver marble

the game could be made fair by adding back the marble that was drawn after each draw