You have a 10kg bag of sand. the mass of a grain of sand is about 10 to the -3 power gram. about how many grains of sand are in the bag of sand

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.

Write the slope-intercept form of the line that passes through the point (1, 0) and is parallel to x - y = 7. t

Which of these tools or constructions is used to inscribe a hexagon inside a circle?