Answer:
10. 2x+y
11. x^2-15x+3
Step-by-step explanation:
10. when u add 7x+3y and 4x+4y you will get 11x+7y. 13x+8y minus 11x+7y will be 2x+y
11. when u add 3x^2+7x+1 and x^2-x+1 u will get 4x^2+6x+2. 5x^2-9x+5 minus 4x^2+6x+2 will be x^2-15x+3
Answer: Buying the 5 tickets to the next hockey game is better because the unit price is only 16$
Step-by-step explanation:
80 / 5 = 16
50 / 3 = 16.666
Answer:
63.38
Step-by-step explanation:
(49.90)(20%)(6%)
20%= $9.98
49.90+9.98 =59.80
(59.80)(6%)
6%= $3.58
59.80+3.58=63.38
Perpendicular lines have slopes that are negative reciprocals of each other, so the equation of the line in point-slope form is:

Rewriting this in standard form,
