Answer:
X= 2.4
Step-by-step explanation:
x = k/y............eqn1
18= k/4
k= 18×4
k= 72
Using the first equation
x= 72/30
x= 2.4
2(l+b) may be because its formula to do it
241.5602
Area of a semicircle is π
Answer:6
..