7=7, 14, ,21, 28
3= 3, 6, 9, 12, 15, 18, 21, 24
So the LCM of 7 and 3 is 21.
Amount after n years = original amount x interest^(number of years)
30,000 = A x (1.05)²⁰
A = $11,307
Answer:
x=17
Step-by-step explanation:
7x+10+3×=180
10x+10=180
-10. -10
10x/10=170/10
x=17
Answer:
£864
Step-by-step explanation:
20% of 720= £144
720+144= 864