Arizbeth spent $20.08 to put 8 gallons of gas in her car. how much would 13 gallons have cost?

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

Find the value of x in each case. give reasons to justify your solutions! d q ∈ pr

10x − 5y + 14 = 0 whats the answer pls