The answer for this question is 4 hours because 4×12 is 48+20=68
(−8.5)(−5)( −2)
This is a multiplication problem, so we can just multiply from left to right:
-8.5 x -5 = 42.5
42.5 x -2 = -85 (negative 85)
Answer:
6
Step-by-step explanation:
2x^2 -6x -2+x^2+4x
All you have to do is add like terms
2x^2+x^2
= 3x^2
-6x+4x
= -2x
Then add them together to get one equation
3x^2 -2x -2
I recommend you study how to add variables as these are very basic sums. Just practice :)