Answer:
scalene and obtuse all sides are different and bigger than 90 degree angle
Answer:
3.8 in decimal form, or 3 4/5
Step-by-step explanation:
I just used a calculator, sorry :(
anyways, hope this helped! :)
The answer is <span>C.150 residents</span>
Let:
x = Chemistry textbooks sold
y = Physics textbooks sold
The textbook store sold a combined total of 260, so:

The number of chemistry books sold was three times the number of physics textbooks sold, so:

Let:

Replace (2) into (1):

Replace the value of y into (2):