How many unique triangles can be drawn with given side links of 8 inches in 10.3 inches in 13 inches

Will give brainliest if you answer question correct

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 word in the sentence below is an interrogative pronoun? who is picking us up from school? whousisfrom