UMA MESA DE BILHAR DE 360 USD DEVIA SER COMPRADA POR UM GRUPO DE RAPAZES QUE CONTRIBUIRAM EM PARTES IGUAIS. COMO QUATRO DELES DESISTIRAM, A QUOTA DE CADA UM DOS RESTANTES AUMENTOU EM 15 USD. QUANTOS RAPAZES ERAM

Translate the word phrase into a math expression. 15 fewer than the product of 4 and a number. (pls immediately)

(05.02)a farmer has decided to divide his land area in half in order to plant soy and corn. calculate the area of the entire area so he knows how much soil is needed. a parallelogram with a height of 6 yards and side length 9 yards. the height forms a triangle with the slanted side of the rhombus with a base of 2.5 yards. rhombus is split into a soy half and a corn half. each bag of soil covers 40 square yards. how many bags should the farmer purchase?

Cd is the perpendicular bisector of both xy and st, and cy=20. find xy.