What would x-2 be in 4x+3(x-2)=-20

How many lines can be drawn through points j and k? 0 1 2 3

Icould really use some with this question.

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers