Answer:
Step-by-step explanation:
A triangle adds up to 180 degrees. So, just add all the angles together
75 + 40 + (x+30) = 180
115 + x + 30 = 180
145 + x = 180
x = 35
I may be wrong but I got x³- 2 + 12.
15%=0.15
4,500x0.15=675
4,500+675=$5,175
Answer:
12. C
13. A
Step-by-step explanation: