Yesterday, Edith went surfing and was out for 2 hours. Today, she spent 50% more time than yesterday riding waves. How long was Edith out surfing today?

3 hours

Step-by-step explanation:

From the given information,

Edith spent 2 hours the previous day which implies 100%

50% increase today means (2 hours of previous day) + (50/100 × 2)

= 2 hours + (0.5 × 2)

= 2 hours + 1 hour

= 3 hours

Therefore, edith spent 3hours surfing today.

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,