In order to solve this problem, you will need to use a type of operation. You can do long division which will be 678 divided 4 and it will give you 169 remainder 5.<span />
Answer:
n=20
Step-by-step explanation:

Answer:
Area of circle = 9<em>π</em>
Step-by-step explanation:
Area of sector = 
Its central angle = 



Answer:
a) x=3
b) x=4.5
Step-by-step explanation:
2(5x – 3) = 24
10x-6=24
10x=30
x=3
5(2x + 1) = 50
10x+5=50
10x=45
x=4.5
Answer:
140x2−252
Step-by-step explanation: