Billy invests £800 for 5 years in a savings account.
By the end of the 5 years he has received a total of £96 simple interest.
Work out the annual rate of simple interest.

2 2/5 % or 2.4%

Step-by-step explanation:

Rate R = 100 x I /P x T

Where

I = interest £96

P = principal £800

T = time 5 yrs

Therefore

R = 100 x 96 /800 x 5

Multiply through

= 9600/4000

Cancel out zeros, we’re left with

= 96/40

Divide both the numerator and denominator by 4

= 24/10

Divide both the numerator and denominator by 2

= 12/5

= 2 2/5 % or 2.4%

452,489 to the nearest thousand is 452,000

b because it contains 40% of the possible results from the random list.  

0,1,2,3 v 4,5,6,7,8,9  

4 integers to 6 integers  

40% success vs 60% fail

step-by-step explanation: