Answer:
pi/2
Step-by-step explanation:
a=4 and b=-1
2(4)+3(-1)= 5
5x-4=11
so you multiply 5 times x (a number) and subtract 4 and it equals to 11
Answer:ty
16.285
you multiply a and b then divide by two cuz its a triangle
then you multiply b by pi and divide by 2 cuz its a semi circle