-). Add 7.62 en 10 to 6.93 n x 10 7 using the following two different assumptions: a). (7 pts) Assume that you have only three significant digits (including the integer part), with guard digits (2 digits) and with rounding. Show your steps. Final answer (sum) b). (7 pts) Assume that you have only threesignificant digits (including the integer part), without guard digits and without rounding. Show your steps l answer (sum) (8 pts) Determinn