The normal cost is $69.50. The dress is on sale for 45% off. That menas the new price is 55% of the actual price because:
[tex] 100 \% - 45 \% = 55 \% [/tex]
Multiply 55% by 69.50. First change 55% to a decimal.
To change a percent to a decimal, move the decimal point 2 places to the left and remove the percent sign.
[tex] 55 \% \rightarrow 0.55 [/tex]
Now multiply by 69.50
[tex] 0.55 \times 69.50 = 38.225 \rightarrow 38.23 [/tex]
The sales price of the dress is $38.23
