Find the quotient. Write your answer in scientific notation (3.6×107)÷(7.2×107)

Tracy solved the following problem. which of the statements is true? 9 ÷ 3 + 6 × 2 3 + 6 × 2 9 × 2 18 her answer is correct. her answer is incorrect. she should have multiplied before dividing. her answer is incorrect. she should have multiplied before adding. her answer is incorrect. she should have added before dividing.

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

How many zeros does the function f(x)=4x3-x2+1 have