Answer:
75
Step-by-step explanation:
30- ( -45)
Two negatives make a positive, so this can simply be changed to an addition:
30+45
75.
Hope this helps!
the one that looks closest to this
D=90° E=103° F=77°
D+90°=180°
D=90°
F+103°=180°
F=77°
E + F=180°
E=103°
12.8 units
25.6/8 = a/4
a = 4 × 25.6/8
a = 12.8
