Write the ratio as a fraction in simplest form with whole numbers in the 3.5 to 4.2

For the equations below which statement is true ? -2x=14 6x=-42

Apositive number a or the same number a increased by 50% and then decreased by 50% of the result?

Elena is paid a constant rate for each hour she works. the table shows the amounts of money that elena earned for various amounts of time that she worked.