Which expression is equivalent to 66 ⋅ 6−9? Question 9 options:

1)

fraction 1 over 6 to the power 3

2)

fraction 1 over 6 to the power 15

3)

1 over 6 to the power negative 3

4)

fraction 1 over 6 to the power negative 15

What value of x is in the solution set of –5x – 15 > 10 + 20x?

Can someone me and do the problem plz so i can understand it more better

Neoli is a nurse who works each day from 8: 00 am to 4: 00 pm at the blood collection centre. she takes 45 minutes for her lunch break. on average, it takes neoli 15 minutes to collect each sample and record the patient's details. on average, how many patients can neoli see each day?