Set up a proportion. 6/10 = 9/x. cross multiply so x times 6 = 6x. And 10 times 9 = 90. so 6x=90. Then 90 and 6x divided by 6. which gets you x=15. The 9 ft tall elephant will cast a 15 ft shadow.
-48 plugging in everything and using PEMDAS it should be -48
The answer is A. (2,2)....
3w-13w=-20
Combine like terms
-10w=-20
divide both sides by -10
w=2
The answer is 60 because
40-10*2=60
hope it helps
