# Math

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A sale at a electronic store offers 20% off a sony radio. If the sale price of the radio is \$45, what is the regular price?

• Math -

0.8x = 45

x = 45 / 0.8
x = 56.25

• Math -

\$45 x .20% = \$9

\$45 + \$9 = \$54

• Math -

.8 p = 45

p = 45/.8 = 56.25

• Math -

Steve it is 20% from original full price, not 20% of final price.

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