Answer:
60
Step-by-step explanation:
rate of change of graph,df(x)/dx
=(120-0)/(3-1)=60
Answer:
12 years younger.
Step-by-step explanation:
Let Jan's age be J and Karyn's age be K.

Jan's age 8 years ago is 2/5 of Karyn's age 4 yeaRs from now.

=> 
=> 4K = 48 X 3
=> K= 36.
=> J= 24.
So Jan is 12 years younger.
<u>Set up an equation based on the information given</u>

<u>Combine like terms</u>



<u>Solve</u>




Answer
The width of the rectangular field is 75 yards.
Answer:
13 (i think)
Step-by-step explanation: