Atriangular pyramid has a surface area of 336 square inches. it is made up of equilateral triangles with side lengths of 12 inches. what is the slant height?

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Joseph haydn pet store offers wide variety of leashes for dogs. the store purchases one popular type of leash from its manufacturer for $4.38 each. joseph haydn pets marks up leashes at a rate of 238% of cost. what is the retail price of the popular leash?

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