4 A store is having a 10% -off sale on all merchandise. If Mai buys one item and saves $18, what was the original price of her purchase?

If you answer right ill give brainliest, : )

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?

Solve for the equation x. 2x + 22 = 4(x + 3)