180*$7.50= 1350, that is correct answer I think
Put in slope intercept form so the first equation would be y=-x-9 then the second one will be y=-5/2x-16
Ratio of shadow to object's size = 2/7
Then, size of tree would be: 7/2 * 28 = 7 * 14 = 98 feet
So, your final answer is 98 feet
Hope this helps!
Answer: 12x + 4y
Step-by-step explanation: