Im suupper confused ngl I didn't pay attention in class. It's hard to when your online T^T

Find equation of line with slope equals 8 and passing through (6,53)

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.

Joe has some money in his bank account he deposits 45$ write an expression that represents the amount of money in joe's account