Are these equations correct?
A person invested $8000 for one year, part at 6%, part at 8%, and the remained at 11%. The total income from
these investments was $635. The amount of money invested at 11% was $500 more than the amount invested at
the 6% and 8% combined.
( x + y + z = 8000
6x + 8y + 112 = 635
( z = 500 + x + y

Karen is financing $291,875 to purchase a house. she obtained a 15/5 balloon mortgage at 5.35%. what will her balloon payment be? a. $220,089.34 b. $219,112.46 c. $246,181.39 d. $230,834.98

Determine the number of outcomes in the event. decide whether the event is a simple event or not. upper a computer is used to select randomly a number between 1 and 9 comma inclusive. event upper b is selecting a number greater than 4. event upper b has nothing outcome(s). is the event a simple event? (yes or no) because event upper b has (fewer than, exactly, more than) one outcome.

I’m confused on how to work the pie charts