Conader a program P runs on machine M$.40\%$ of the execution fime is spent on floating point instructions, and $20\%$ of the execution time is spent on control instructions $($jump and branch$).$ The rest af the execution firme i spent on the other instruction types. Suppose the floating point unit has been improved by a factor of $4.$ In addition$/$a branch predictor has been used, and it succeeded to reduce the control instructions execution lime by a factor of $2.$ What is the overall speedup resulting from these two improvements?