What is the sum of the first 30 terms of this arithmetic sequence?
6,13, 20, 27, 34, ...

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?

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.

Sole the equation 6n + 9 = -3n - 21 - 6 for n