Mônica pagou a mensalidade da escola de seu filho com alguns dias de atraso com uma multa de 6%. Se a mensalidade era de 800 reais, o valor total pago, com acréscimo da multa foi: a)40 b)840 c)856 d)848

Someone . me. compound probability

The square pyramid has a volume of 441 cubic inches. what is the value of x? 1/7x is the height x is the base

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11