Andrea withdrew $40 each week from her account she made no deposits that account is now at zero dollars write a numeric equation using negative’s to show the amount of money in the account three weeks ago

The larger of two number is 4 less than twice the smaller number. the sum is 41. find the numbers

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.

Compute the standard deviation of the following set of data to the nearest whole number. 10, 10, 15, 20, 25