The answer is 6 or 8 which ever one u feel comfortable with
Answer:
50
Step-by-step explanation:
x = √30² - 18² = √576 = 24
tan A = 18/24 = 3/4
∠A = ∠B
tan B = tan A = 24 / y = 3 / 4
y = (24 x 4) / 3 = 32
Z = y + 18 = 32 + 18 = 50
The answer is the second one y=1/2x+4
4.2% of 50 is 2.1
So 2.1 is your answer