Answer:
56/5
Step-by-step explanation:
2 4/10=24/10
8 4/5=44/5
24/10+44/5=24/10+88/10=112/10=56/5
In this question we have to find the effect of doubling principal, rate or time .
First we have to check the formula which is

As we see that interest is the product of principal, rate and time. So if any of these three doubles, that is if any of these three is twice of the original value, the interest gets doubled.
SO the correct option is C.
Answer:
B
Step-by-step explanation:
<span>i dont know.. there isnt enough information i'm sorry</span>
Lets call the number 'n'
plus means addition
is means the equal sign
so that as an expression would be

n+4=7