Una persona tiene S/100 y otra S/40; despues que cada una de ellas gasto la misma cantidad de dinero, a la primera le queda el cuadruple de lo que a la segunda. ¿ cuanto les queda en conjunto a ambas personas ?

What is the solution set of the quadratic inequality x^2-5< or equal to 0

Піf x = y and y= z, which statement must be true? оа. -x = -2 b. x= z ос. —x = 2 od. 2= x

The management of a supermarket wants to adopt a new promotional policy of giving a free gift to every customer who spends more than a certain amount per visit at this supermarket. the expectation of the management is that after this promotional policy is advertised, the expenditures for all customers at this supermarket will be normally distributed with a mean of $95 and a standard deviation of $20. if the management wants to give free gifts to at most 10% of the customers, what should the amount be above which a customer would receive a free gift?