Pls answer this asap no wrong answers pls

What is the best way to answer questions with a x expression in the question. for example 3x + 10x=?

When 142 is added to a number the result is 64 more then 3 times the number. option 35 37 39 41

Type the correct answer in each box, round your answers to the nearest integer 20 25 30 in the figure, the perimeter of hexagon abcdef is approximately w units, and its area is square units