. In a sale, there is twenty-five per cent off all prices. A chair costs £45 in the sale.
How much was it before the sale?

The oates family went out for dinner the price of the meal was $33.95 the sales tax was 7.25% of the price of the meal . the tip was 15% of the meal and the sales tax . how much money did the oates family pay for the meal, including tax and tip

In a class of 77, there are 44 students who play soccer. if the teacher chooses 33 students, what is the probability that none of the three of them play soccer?

Find the solution of this system of equations -7x+y=-20 9x-3y=36