Find an expression which represents the difference when (-4x-2) is subtracted from (-8x+3) in simplest terms.

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.

Which of the following is the result of expanding

Evaluate 8j -k+148j−k+14 when j=0.25j=0.25 and k=1k=1.