Two numbers are w and 3w - 5. their sum is 23. solve the equation w + 3w -5 = 23 to find the numbers.

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

43lbs of tomatos cost $387. how much would 41lbs cost

Find the area of the regular hexagon if a side is 20 cm.