You earn 10% commission on furniture sales. This week you have sold $3,000 in furniture. Your goal for the week is to earn $550 in commission. How much more in commission do you need to earn to reach your goal

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expression #3 is not equivalent. the others are.

54 kilometers per hour

step-by-step explanation:

according to rules:

1 km = 1000 meter

which means that 1 meter = 1/1000 km

1 hour = 3600 second [ as 1 hour = 60 min = 60 *60 seconds ]

which means that 1 second = 1/3600 hour

therefore, 1 kilometer/hour =

thus to convert 15 meter per second to kilometer per hour, we multiply 15 to 3.6 kilometer/hour.

15 meter/second=   which is the required answer.