7th grade math help me plz

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

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.

Apack of gum would be considered a(n) necessity luxury item small ticket item unaccountable expense