(Tengo que resolverlo en forma de ecuación, solamente no se como poner la ecuación) Un quilo de cerezas me cuesta el doble que un quilo de naranjas. Por 3 quilos de cerezas i 5 quilos de naranjas he pagado 11 euros. Que precio tiene el quilo de cada fruta?

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7x+8y=-18, 4x-9y=-3 solve the system of equations

Liz is shipping a package to her friend. the maximum weight of a medium flat-rate box is 20 pounds, including the box which weighs 6 ounces. write and solve an inequality to describe the possible weight ,w, of the contents that liz will ship to her friend if she must use a medium flat-rate box.

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.