Can y’all please help me ??

If the outer area is 99 cm², then what is the inner area?

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d?

Johnny rode his bike to a friends house 4 blocks down the street in his neighborhood. he immediately rode back home once he realized his friend was unable to play. what was his displacement for the total bike ride trip? what could you use as a reference point ? show the steps to solve this problem.