D(-3,1) is the right answer
Answer:
740 or 990
Step-by-step explanation:
It just depends on the height. I don't know if it is 10 or 15. If the height is 15 then 990. If the height is 10 then 740. :)
Answer: 
Step-by-step explanation:
Three-fifths of the sum of 9 and f is
=
=