The librarian, ms. barrett, wants to buy new books for the school library. she posts a sign in the library to raise money, and 75 students donate $0.50 each for the book drive. if she splits the money donated evenly between two genres (fiction and non-fiction), how much money does she have to spend on each genre? a) $18.75 b) $187.50 c) $28.50 d) $37.50

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.

To determine the number of deer in a forest a forest ranger tags 280 and releases them back

Me! i really need to get this right before 9. prove the divisibility of 7^6+7^5-7^4 by 11. use factoring so you get a number times 11. just tell me the number. i need this done asap