Which is an equivalent ratio to 7:5
A: 14:12
B:21:10
D:21:15

Christine went shopping and bought each of her six six nephews a? gift, either a video costing? $14.95 or a cd costing? $16.88. she spent ? $ 97.42 97.42 on the gifts. how many videos and how many cds did she? buy?

Kayla has a $500 budget for the school party. she paid $150 for the decorations. food will cost $5.50 per student. what inequality represents the number of students, s, that can attend the party?

Assume that y varies inversely with x. if y=1.6 when x=0.5 find x when y=3.2