Your local gas stations are having a price war. during the past 7 days they have
lowered the price of regular gas by $.02 each day. define a variable. then write and
solve an equation to find the total change in gas price. show your work.

− $ 0.14

Step-by-step explanation:

t

be the total change in the price of gas, what we are solving for in this problem.

d

be the number of days the prices has decreased. 7 for this problem.

c

be the change in price each day. -$0.02 for this problem (the price has been lowered so this number is negative).

The formula will be:

t = d ⋅ c

Substituting and calculating  t

gives:

#t = 7 * -$0.02$

t = − $ 0.14

Over the last 7 days the price of gas has changed  

− $ 0.14

0.14

Step-by-step explanation:

C≈94.25in

Step-by-step explanation: