Which show the answer in expanded form

yeah it is c

Step-by-step explanation:

if you add them all up it should give you 54.98

it is with there value

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.

i’ll just s take the points thxs