Each term differs by -68 and the first term is -68, we have:

As an expession it's just -68n.
I hope this helps you
3t÷3 < -15÷3
t < -5
So what you do is you want to multiply
3.8 × 50=190km
Let the cost of renting a chair be x and for renting a table be y than 5x + 3y = 31 and 2x + 6y = 52 2x+ 6y = 52 can be further simplified to x + 3y = 26 now try solving for x and y... best of luck:D
X²-5x-36
Write -5x as a sum or difference.
x²+4x-9x-36
Factor out x from the expression.
x(x+4)-9(x+4)
Factor out x+4 from the expression.
(x+4)(x-9)
Answer: The second step is to factor out x.