Maddy's soccer team played 20 games in 2019 and then played 16 games in 2020. What was the percent decrease in the number of games Maddy's team played?

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.

Solve for x and select the correct answer

Me d is also an option but i couldn't get it in the picture