1. A hummingbird's brain has a weight of approximately 2.04 x 10^-3 ounces. An elephant's brain has a weight of approximately 1.76 x 10^2 ounces. Approximately how many times heavier is the elephant's brain than the hummingbird's brain?
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Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

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.

Let f(x)=2x and g(x)=2x. graph the functions on the same coordinate plane. what are the solutions to the equation f(x)=g(x) ?me asap