HELP ME SOLVE THIS ITS DUE IN A COUPLE OF HOURS PLEASE!!

Find the value of ax 4 ; a = 2, x = 1. select one: a. 2 b. 4 c. 1 d. 8

The party planning committee has to determine the number of tables needed for an upcoming event. if a square table can fit 8 people and a round table can fit 6 people, the equation 150 = 8x + 6y represents the number of each type of table needed for 150 people.

Could someone me with this question i’ve been stuck on it for 20 minutes