Find the following arc measures for question 2

Me figure out the process to determine x you appreciate it : )

What value of x is in the solution set of 4x - 12 s 16 + 8x? -10 -9 -8 -7

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers