Answer:

Step-by-step explanation:
Perimeter of semicircle = 
Where r = 11 cm
=> P = 
=> P = 
=> P = 56.55751919 cm
Assuming that you ment- (18*9)/3d where d=3 you would follow PEMDAS-
Parentheses
Exponents
Multiplication-Division (in order from right to left)
Addition-Subtraction (in order from right to left)
1. Parentheses- (18*9)=162
2. Solve your variables- 3d (3*3)=9
Giving you- 162/9
3. Solve-162/9=18
Answer:
The answer for your problem is 240
Step-by-step explanation:
A=wl=12·20=240
for this problem all you had to do was multiply
12*20 to get your answer
Answer:
nothing is there
Step-by-step explanation:
I got 39 tables.
134+167=301
301/7=43
Total amount of people =344
344/9=38.222 which you would round to 39 tables