Julle selects a card at random from the shape cards shown.
What is the probability that the card Julie
selects shows a polygon?

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 choices shown could be used to prove that aacp=abcp ?

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class