Emily knows that the first angle of a triangle measures 54 degrees, and the second angle measures 43 degrees. Which equation could Emily use to find a, the measure of the third angle?

Arational number that is equivalent to -20/4?

Me d is also an option but i couldn't get it in the picture

Taber invested money in an account where interest is compounded every year.he made no withdrawals or deposits. the function a(t)=525(1+0.05)^t represent the amount of money in the account after t years. how much money did taber origanally invested?