Samuel paid $15.97 for gas this week, which was $3.47 less than he paid last week. How much had he paid last week?
wrote the equation out step by step

i need this asap

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

Arational number that is equivalent to -20/4?

Mia’s gross pay is 2953 her deductions total 724.15 what percent if her gross pay is take-home pay