Please help with this geo / math problem ASAP

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?

The function v(r)=4/3pir^3 can be used to find the volume of air inside a basketball given its radius. what does v(r) represent

Robin spent 25% more time on his research project than he had planned he’s been an extra h ours on the project which of the following expressions could represent the number of hours rob actually spent on the project