I'M GIVING OUT BRAINLIEST TO THE CORRECT ANSWERS

Solve and show your work for each question.
Note:Remember per the rule of 9s if you have a repeating and non-repeating component you need to handle them separately.
What is 0.42 expressed as a fraction in simplest form?
What is 0.4¯2 (repeating 2) expressed as a fraction in simplest form?
What is 0.¯42 (repeating 42) expressed as a fraction in simplest form?

Gexpressions: practice question 3 of 5 jackson wants to study the popularity of his music video by tracking the number of views the video gets on his website. the expression below represents the total number of views that jackson's video receives n days after he begins tracking the nu views, where b is the rate at which the number of views changes. alb)" select the statement that would accurately describe the effect of tripling a, the initial number of views before jackson beginst the rate at which the number of views changes, b, will triple. the total number of views the video has after n days, a(b)", will not change. the total number of days since jackson begins tracking views, n, will be reduced by one-third. the total number of views the video has after n days, alb)", will triple. submit

Rewrite the following quadratic functions in intercept or factored form. show your work. f(x) = 3x^2 - 12

Amountain climber starts a climb at an elevation of 453 feet above sea level at his first rest stop he has climbed 162 feet and by his second rest stop he has climbed another 207 feet its getting late in the day so the climber starts his way down if the climber desends 285 feet how much does he need to ascend or descend to return to the original starting point