Harlan makes a snack mix with proportional amounts of cereal and popcorn the graph shows how much popcorn he uses with different amounts of cereal to the snack mix question 1)how many cups of popcorn does Harlan uses per cup of cereal ? Question 2)How many cups of cereal does Harlan use per cup of popcorn ?

(hurry! ) which expression is equivalent to the following complex fraction?

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.

Need on this one asap im almost done with this subject