Looks like you don't need help! You got the correct answer!
Answer:
The amount of intrest gained was B. $7.50
Step-by-step explanation:
Mark invested $125.
He gaines 3% per year and he did it for 2 years.
.03 x 2 =.06
125 x .06 = 7.50
B. $7.50
Hope this helps!
:)
7 x 110 = 7(50 + 60) = 350 + 420 = 770
Isn’t it already simplified?... or am i stupid.
Answer:
Equivalent 
Step-by-step explanation:
Given: 3 radical 8
Mathematically 3 radical 8 can be written as 
We have to find an equivalent to
.
Given expression can be written as ,

On further simplification, we get,

We know 
further simplification gives,

Thus, Equivalent 