The original amount is 44 photos then he took 25 more photos in 6 days. what is the rate
of change

The rate at which amount of photo increase after 6 days is 7.75

Step-by-step explanation:

Given as :

The original amount of photo = 44

The final amount of photo = 44 + 25 = 69

Time period = 6 days

Let The rate = r

So, final value after n days = original value ×

Or, 69 = 44 ×

Or, =  

Or, 1.568 =  

Or, =

Or, ( 1.0775 - 1 ) × 100 = r

Or, 0.0775 × 100 = r

∴   r = 7.75

Hence The rate at which amount of photo increase after 6 days is 7.75 Answer

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8

they charge the same amount at 20 minutes.

step-by-step explanation: