The answer is 7.5.
7 4/8 is also 7.5
Annual interest is P*r^t, r is 0.05 here, t is 9/12=3/4=0.75
P*0.05^0.75=120
use your calculaor: P= 120÷ (0.05)^0.75=1135
so he invested about 1135 dollars
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Answer:
Step-by-step explanation:
I am sort. I have no idea
Answer:

Step-by-step explanation:
The equation needs to have a product of 3.15.
And the equation has to be a decimal equation. So we have o use numbers such as 10, 100...




We can write as many equation as this.