linda murray's investment earned $77.00 in simple interest in 6 months at an annua
nterest rate of 7%. how much money did she invest?

Step-by-step explanation:

we know that

The simple interest formula is equal to

where

I is the Final Interest Value

P is the Principal amount of money to be invested

r is the rate of interest  

t is Number of Time Periods

in this problem we have

substitute in the formula above

solve for P

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i dont know the answer but here's a picture of a dog