Linda bought 63 pairs of gloves, which were on sale with a promotion of "buy 4 get 1 free." If each pair of gloves cost $14.50,
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<em>To solve for a variable, you have to isolate that variable onto one side.</em>
<h3>1.</h3>Firstly, multiply both sides by 2:
Next, divide both sides by a + b and <u>your answer will be: </u>
For this, divide both sides by πr², and <u>your answer will be </u>
Firstly, subtract both sides by 2πr²:
Lastly, divide both sides by 2πr, and <u>your answer will be: </u>