Katherine practices skiing for 1 1/2 hours every day except saturday and sunday. she practices for four hours on saturday and three hours on sunday. how many hours does she practice in a week?

1 1/2 hours x 5 days  = 7 1/2 hours

4+3 +7 1/2 = 14 1/2 hours per week

the least common denominatore of 7 and 2 is 9

step-by-step explanation:

7+2=9

correct choice is b

step-by-step explanation:

when you calculate the average rate of change of a function, you are finding the slope of the secant line between the two points. for the function the average rate of change from point to point can be calculated as

to find the average rate of change from day 2 to day 10, note that at day 2, 8 houses were sold, so a(2,8) and at day 10, 2 houses were sold, so b(10,2). thus,