Answer: 3
Step-by-step explanation:
All the angles should add up to 360°.
8x+10x+9+21x-12+90=360°
Group like terms together.
So,8x+10x+21x+9+90-12=360
39x+87=360
39x=360-87
39x=273
x=7
Hello!
A statistical question is a question that will return a variety of answers.
Question One is statistical.
Question Two is not statistical.
Question Three is not statistical.
9514 1404 393
Answer:
a) $135.97
b) $342,892.60
Step-by-step explanation:
a) The attached spreadsheet shows the use of the "payment" function for determining the amount of a payment that will give the desired future value. It shows the deposit needs to be $135.97 per month.
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b) The interest earned is the difference between 420 payments and the account balance. The interest amount is $342,892.60.