How do you compute the monthly sales tax on a lease payment?

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 closest to 32.9 x 7.5? a: 232 b: 259 c: 220 d: 265

Mr. t has been dating his girlfriend for one year nine months and six days how many hours has mr. t been in a relationship