Hi, can you help me with part a, d, c, and d?

Three charges are placed at the same distance d = 87.8 cm from the origin. 92 E 91 The values for the charges and angle are q1 = 8.45 UC, 92 = -9.1 HC, . 93 = 1.21 UC and . 01 = 41.70. The illustrated electric field is only shown to define the variable p..the direction of the electric field a. (Q6 ans 2 pts, Q7 work 4 pts) What is the magnitude of electric field at the origin due only to go ? b. (Q8, 2 pts) What direction is the field at the origin, due only to ga ? c. (Q9, 6 pts) What is the magnitude of the electric field at the origin due to the charges gu. q2 . and 93 ? d. (Q10, 6 pts) What is the value of o in the image above? This is the direction of the total electric field at the origin due to charges qu. 92 , and 93 ? It is measured counter-clockwise from the + axis, as pictured