Answer: So True
Step-by-step explanation:
The initial population was 234.
<em><u>Explanation</u></em>
<u>Formula for the exponential growth</u> is:
, where P is the initial amount, A is the final amount, r is the rate of growth and t is the time duration.
There was 337 bacteria after 5 minutes and 699 bacteria after 15 minutes. So, the equations will be......

Now dividing equation (2) by equation (1) , we will get .......

<u>Taking 'natural log'</u> on both sides.........

Now, plugging this
into equation (1), we will get......

So, the initial population was 234.
(48-7)x(56+19)
First of all you need to work out the brackets.
48-7=41
56+19=75
This turns the question to: 41x75
When multiply decimals you can split the numbers up into the tens and units.
40x70=2800
40x5=200
1x70=70
1x5=5
2800+200+70+5= 3075
This answer would be 3075.