Answer:
221.90 dollars
Step-by-step explanation:
if it costs 85 dollars for three hours and they are going to rent it for six you mulitply 85 by 2 (to get the cost for 6 hours) and you get 170 then you find 7 percent of 170 (which is 11.90) then you add that to the total. you get 181.90 dollars and then add 40 (which was the tip) and you get 221.90 dollars.
1.Simplify.
-2{x}^{2}-4x+13+12{x}^{2}+2x-25−2x2−4x+13+12x2+2x−25
2.Collect like terms.
(-2{x}^{2}+12{x}^{2})+(-4x+2x)+(13-25)(−2x2+12x2)+(−4x+2x)+(13−25)
3.Simplify.
10{x}^{2}-2x-1210x2−2x−12
answer: positive
for example: -2 x -2 x -2 x-2
=4 x -2 x -2
=-8 x -2
=positive 16
