2. Devin is buying five quarts of motor oil and gasoline for her car. Each quart of motor oil is
$4.49, and each gallon of gasoline is #2.59.
What is an equation that relates the total
amount spent, T, in follars and the number of
gallons of gasoline purchased, g?

Step-by-step explanation:

Multiply 5x4.49= 22.45

Do the same for the gasoline G5x2.59= 12.95

T22.45+12.95= 35.40

, and

for

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

from , to get to , we add

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

, and for