Idon't get this and i'm really lost

How do you write y-10=2 (x-8) in standard form

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.

Susie wants to take her friend out for lunch.she wants to spend $9.75 each person. how much will she spend in all.