plz i have no idea what to do a store is having a sale on jelly beans and trail mix. for 5 pounds of jelly beans and 3 pounds of trail mix, the total cost is $17. for 7 pounds of jelly beans and 9 pounds of trail mix, the total cost is 37 . find the cost for each pound of jelly beans and each pound of trail mix.

Which of the following are parts of a sphere

The suare root of 9x plus 7 plus the square rot of 2x equall to 7

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.