It can work well here to simplify inside parentheses first.

_____
The correct selection is not show with your problem statement.
Step-by-step explanation:
1050 es la respuesta amigo
4a+6b is the answer you have to look at the variable so for a 4a-2a+2a and b there is just one variable so it’s 6
3% is the interest so you would do 3% of the investment plus the original investment so 3%×I=z and then z+I=the answer. sorry if this didnt help I'm new and I tried my best sorry!
Answer:
NM = 13
Step-by-step explanation:
pythagorean theorem: 
a or NO = 5
b or OM = 12
c or NM = ?
plug in what is known:
⇒ 
⇒ 
⇒ 169 = 
square root each side of the equation:
⇒ 
solve:
⇒ 13 = c