Solve the equation 0.3x-2=0.1(x+20) whats the solution set?

What is the common difference in the following arithmetic sequence 7,3,-1,-5

Correct answer brainliest asap an d 99 pointsss what are relative frequencies to the nearest hundredth of the columns of two way table column a 102, 18 colunm b 34, 14 answers choices 0.15 0.25 0.29 0.44 0.56 0.71 0.75 0.85

Acircle has a circumference of 28.36 units what is the diameter of the circle