Two planes started at the same time from two airports which are 2300 miles apart and flew toward each other. one plane few 310 mph, and the other flew 390mph. in how many hours were the planes still 200 miles apart?

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?

Evaluate the function , when d = {9, 15, 30}. r = {5, 7, 12} r = {6, 10, 15} r = {6, 10, 20} r = {5, 12, 20}

The candy store is having a 30% off sale. emma is going to buy $7.50 worth of candy.how much will she pay after the discount