The sun of 3 times a number and 5 is 2 times the number plus 15. what is half the number

Find the quotient. 50a2 – 98b2 -5a +7b

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.

How to simply and write the answer n a whole number