You and your family go out to eat and the total of the food is $80, there is 5% sales tax and you should tip the waiter 10%. How much is the cost of the meal with tax and tip?

Is it greater than or less than7*3_9*2

White shapes and black shapes are used in a game. some of the shapes are circles. while the rest are squares. the ratio of the number of white shapes to the number of black shapes is 5: 11. the ratio of the number of white cicrles to the number of white squares is 3: 7. the ratio of the number of black circles to the number of black squres is 3: 8. work out what fraction of all the shapes are circles.

Find solution of the linear equation y = 2/3x + 1/3