# math correction

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can someone correct this for me.Also do i have to solve it all the way or what does it mean by inequality form.

Business and finance. The cost for a long-distance telephone call is \$0.36 for the first minute and \$0.21 for each additional minute or portion thereof. Write an inequality representing the number of minutes a person could talk without exceeding \$3.
Let x = be the number of minutes:
The first minute cost \$0.36
The remaining x –1 minutes cost \$0.21 each
So the remaining x- 1 minutes altogether costs \$0.21 (x – 1)

Total cost = \$0.36 + \$0.21 (x – 1)

This must be less than or equal \$3.00. So we have:
\$0.36 +\$0.21 (x- 1) <= \$ 3.00
Multiply through by 100 and drop the \$’s
36 + 21(x –1)<= 300
12 + 7 (x –1) <=100 (In this step in order to get this equation I had to divide both sides by 3 to make the numbers smaller.)
12 + 7x – 7 <= 100
7x + 5 <= 100

• math correction - ,

36 + 21(x –1)<= 300 is the answer to writing an inequality representing the number of minutes a person can make with 3 bucks.

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i need help on correcting my work

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The price of a wrist watch is\$575.00 subject to 15% V.A.T
calculatethe 50 percent fat on wrist watch.
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