What is the simplified expression for 5ab+9ab-ab
1 answer:
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Answer:
(a) 9
Step-by-step explanation:
substitute r = 4, t = 2
simplify
cubic of 2 is 8
simplify
<h2>Answer with explanation:</h2>
Let x denotes the number of days and y denotes the total change in gas price ( in dollars).
Given : During the past seven days the price of regular gas is decreased by $0.2 each day.
Rate of decrease =$0.2 per day
Then , Total change in gas price = Rate of decrease x Number of days
i.e.
i.e. (1)
To find the total change in gas price in 7 days , we put x= 7 in (1) , we get
Hence, the total change in gas price in 7 days = $1.4