Ineed perth questions 1,2,3 and 4 and it’s very hard and i’m struggling with it and if you need to see the picture big then click on it and it will be big

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.

Rectangle leg this 11feet and perimeter of 38feet what is the width of the rectangle in feet

Use the data on the dot plot to answer the question.how many people read for more than three hours last week? i'm on a unit test review