Answer:
21 cupcakes
Step-by-step explanation:
6 = $7
18 = 6 x 3
18 = 7 x 3
18 = $21
1/10 of an hour (D) is correct. Hope this helped :)
Answer: 6 years
Step-by-step explanation:
Formula to calculate compound amount: , where P= Principal , r=rate of interest, t= time
Given: P = £400, r = 3% = 0.03 , A= 475
Required equation:
Taking log on both sides , we get
Hence, he needs to invest the money for 6 years to get atleast £475.