Herbert Hoover puts $50000.00 into an account to use for school expenses. The account earns 6% interest, compounded semi-annually.
How much will be in the account after 10 years? *
89122.50
90305.56
73887.11
3000000

5=812a+9+3

step 1: simplify both sides of the equation.

5=812a+9+3

5=(812a)+(9+3)(combine like terms)

5=812a+12

5=812a+12

step 2: flip the equation.

812a+12=5

step 3: subtract 12 from both sides.

812a+12−12=5−12

812a=−7

step 4: divide both sides by 812.

812a /812 = -7/812

a= -1/116

so the answer is

a=   -1/116

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the answer to your question is b.