In $7$ days, Alexander spends a total of $13$ hours rehearsing for the concert.

At what rate, in hours per day, does Alexander rehearse, rounded to the nearest hundredth?

A $0.54$

B $1.86$

C $7$

D $91$

The graph shows the prices of different numbers of bushels of corn at a store in the current year. the table shows the prices of different numbers of bushels of corn at the same store in the previous year. previous year number of bushels price of corn (dollars) 2 10 4 20 6 30 8 40 part a: describe in words how you can find the rate of change of a bushel of corn in the current year, and find the value. part b: how many dollars more is the price of a bushel of corn in the current year than the price of a bushel of corn in the previous year? show your work.

What is the difference between the predicted value and the actual value

In a two-digit number the units' digit is 7 more than the tens' digit. the number with digits reversed is three times as large as the sum of the original number and the two digits. find the number.