If f(x) = 5x − 1 and g(x) = 2x^2 + 1, what is the value of (f × )?
a.) 254
b.) -254
c.) 304
d.) -304
e.) -354

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.