The cost in dollars of an item including tax is given by c=p+(.065) where p is the price of the item before tax what is the cost of an item including tax if the price before tax is $ 24.99

The cost of an item including tax  is $26.61435

Step-by-step explanation:

we are given

the cost in dollars of an item including tax is given by

where

where p is the price of the item before tax

we are given

price =24.99

so, p=24.99

we can plug it and find cost

So,

The cost of an item including tax  is $26.61435

see explanation

step-by-step explanation:

since the sequence is geometric there is a common ratio r between consecutive terms, that is

r = 4 ÷ - 2 = - 2

r = - 8 ÷ 4 = - 2

r = 16 ÷ 8 = - 2

the next term - 13 must be incorrect as it should be - 32 for the sequence to be geometric.

the first 4 terms are therefore geometric with common ratio r = - 2