Brianna's score on a national test exceeded the scores of 95,000 of the 125,000 students who took the test. what was her percentile rank?
( elaborate)

Scarlet bought three pairs of sunglasses and two shirts for $81 and paula bought one pair of sunglasses and five shirts for $105 what is the cost of one pair of sunglasses and one shirt?

Cora bought a package of erasers. there are 4 pink erasers and 12 blue erasers. what is the ratio of pink erasers to blue erasers?

Anyone? 15m is what percent of 60m; 3m; 30m; 1.5 km?