Olivia's cell phone bill last month was $125. This month her bill is $85. What is the percent of change in Olivia's bill?

32%

Step-by-step explanation:

Olivia's cell phone bill last month was $125. This month her bill is $85. What is the percent of change in Olivia's bill?

The formula for Percent change =

Amount of change/Original amount × 100

Amount of change = Original amount = New amount

Original Amount/bill = $125

New amount/bill = $85

= $125 - $85

= $40

Percent change = $40/$125 × 100

Percent change = 0.32 × 100

Percent change = 32%

Therefore, the percent of change in Olivia's bill is 32%

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step-by-step explanation:

do 6-10=

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step-by-step explanation:

we can analyze the pattern at which the terms increase. let us denote , , , so that we can call

note the following:

the pattern: to get the next term value, we just add the next term number (e.g. 1st, 2nd, to the previous term value (term values are the given numbers in the question, 1, 3, 6, 10, 15,

from , to get to , we add

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etc.

we need to form a recursive formula, a formula that has the next term as a function of the previous term. so a possible recursive formula can be

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