Bella received $1,200 after winning a national mathematics competition. She plans to invest this money for 5 years. Her bank offers 2 different saving options:

Option A: Customers receive a simple interest rate of 7.8%.
How much money will be in Bella's account after 5 years if she chooses option A?

$
Option B: Customers receive compound interest of 7.2%.
How much money will be in Bella's account after 5 years if she chooses option B?

$
If you are a customer adviser, which option would you recommend to Bella?

If lmn=xyz, which congruences are true by cpctc? check all that apply

Asmall (but heavy) particle placed in a glass of water will follow a zigzag motion because the particle will bounce off of the water molecules it meets. this is called brownian motion. a physicist simulates this on a computer, by varying the distance a particle can travel (called the mean free length), on average, before it collides with a water molecule and assigning the change in motion to be one of 8 directions, each with a similar probability. by running the simulated particle (with the same mean free length) many times she determines that it should take 15 seconds, on average, for the particle to fall to the bottom, with a standard deviation of 1.5 seconds. next she lets a real particle fall through a glass of water and finds that it took 18 seconds. what does she conclude, and why?

Geometry in the diagram, ∠abc is a right angle. ∠dbc = 30°27'40". find the measure of ∠abd.