Answer:
the 3rd option is the answer
Step-by-step explanation:
I hope the attached file is self-explanatory
The effective rate of interest will be 9.10 %.
<h3>What is compound interest?</h3>
Compound interest is applicable when there will be a change in principle amount after the given time period.
Let's say you have given 100 for two years with a 10% rate of interest annually than for the second-year principle amount will become 110 instant of 100.
Given for simple interest
Principle amount = $650
Rate of interest = 12%
Time period = 7 months.
Interest= PRT/100
Interest= 650× 12 × 7/100 = 546
So final amount = 650 + 546 = $1196
By compound interest
1196 = 650![[1 + R/100]^{7}](https://tex.z-dn.net/?f=%5B1%20%2B%20R%2F100%5D%5E%7B7%7D)
R = 9.10%
Hence the effective rate of interest will be 9.10%.
For more information about compound interest,
brainly.com/question/26457073
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Answer:
1. Line c
2. She subtract when she suppose to add
3. 2x-12+12 = 10+12
2x = 22
x = 22/2 = 11
x is 11
The answer is A I think sorry if I’m wrong