Richard goes to the electronics store. he buys 2 memory cards that cost $8.99 each and 3 packages of batteries that are on sale for $7.47 each. he also buys a case for his cell phone for $2.99 and a wireless headset for $29.99. what is the total cost of richard’s items, before sales tax?

$82.36

Step-by-step explanation:

Given :

Richard buys 2 memory cards that cost $8.99 each and 3 packages of batteries that are on sale for $7.47 each.

He also buys a case for his cell phone for $2.99 and a wireless headset for $29.99.

To Find: What is the total cost of Richard’s items, before sales tax?

Solution:

Cost of 1 memory card = $8.99

Cost of 2 memory card =

Cost of 1 battery = $7.47

So, cost of 3 batteries =  

Cost of cell phone = $2.99

Cost of headset = $29.99

Total cost of Items =  $8.99+$17.98+$22.41+ $2.99+ $29.99

                               =$82.36

Thus the total cost of Richard’s items, before sales tax is $82.36

answer

the correct answer is

explanation

the given function is

the excluded values are obtained by solving:

we factor to obtain:

the excluded values are