Let's say Jackson's age now is x.
In 20 years, (so 20+x), Jackson seven years ago will be 2/5ths of that age.
So 2/5(20+x)=x-7
Then you solve the equation
8+2/5x=x-7
15=3/5x
x=25
Jackson is 25 years old.
Let's check our answer! In 20 years, Jackson will be 45. 7 years ago, he was 18. 2/5 of 45 is 18. Our answer is correct!
The best and most correct answer among the choices provided by the first question is letter E which is all of the above.
On the other hand, the best and most correct answer among the choices provided by the second question is letter A which is rebirth and coming death.
I hope my answer has come to your help. Have a nice day ahead and may God bless you always!
The derivative of (x+1)^2, for this you use the chain rule, to get 2x+2.
P = 10 + x + 2x + 7
= (10 + 7) + (x + 2x)
= 17 + 3x
Therefore, the perimeter is 17 + 3x feet.
Answer:E
Step-by-step explanation: