Brainliest to correct answer, please hurry

For the rule of 78, for a 12-month period, the last term in the sequence is 12 and the series sums to 78. for an 10 month period, the last term is and the series sum is . for a 15 month period, the last term is and the series sum is . for a 20 month period, the last term is and the series sum is

What number line represents the solution set for the inequality -1/2 greater than or equal to 4

What is the rate for one gallon of gasoline