Mrs. lindy is purchasing notebooks for her students. she spends \$52 on n notebooks. each notebook costs \$3.25
select the equation that matches this situation.
choose 1
a n= 3.25 x 52

b 3.25/52= n

c 52=3.25n

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.