Find the midpoint of the line segment whose endpoints are (-7, -5) and (5, 19).

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.

The perimeter of a rectangle is 42 inches. if the width of the rectangle is 6 inches, what is the length

If you have 12 feet of string and you cut it into equal length of 5 inches each how much string will be left