Answer:
$340
Step-by-step explanation:
Considering 15% off it means customers pay 100-15=85%
Considering that the original price is given as $400 but one only pays 85% of this then the amount payable will be 85% of $400
85% converted to decimal will be 85/100=0.85
Therefore, the amount payable when the offer of 15% exist on the original lrice of $400 is 0.85*400=$340
