She would have a total of 40 stamps.
Step-by-step explanation:
i know this but i don't have time now
Because this is a second degree equation you will have 2 solutions. When you take the square root of a number you have to account for both the positive and negative roots. Since the square root of 289 is 17 then your solutions are +17 and -17.
Answer: 201 calls
Step-by-step explanation: 33-19=14
14/0.07=200
201x0.07=33.07
33.07>33