The dimensions of a box are x, 2x, and 3x. Each dimension is increased by 3. Calculate the volume of the box.

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The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year.how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

What is the perimeter of a rectangular building that is 80 feet wide and 140 feet deep?