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1 answer:
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In the given question, it is given that, the cost of telephone call, s, is $0.75 plus $0.25 times the number of minutes .
And we have to put the given informationin algebraic expression .
For the cost of telephone call, we have to use s and for the number of minutes, we need to use t .
So the required expression is
Answer:
0
Step-by-step explanation:
By the remainder theorem, this is the same as finding f(-1/2), which is equal to 0.
Answer:
Increased by 5%
Step-by-step explanation:
Let at the beginning the student's score be points.
At first, it increased by 40%. So, the new score is
Then it decreased by 25%, so the new score is
At the beginning of a month the score was and at the end of that month the score was
. Since
the score increased by