Raphael is twice as old as his sister is. the sum of their ages is less than 30. what is the greatest age raphael’s sister can be?

Combined megan and kelly worked 60 hours. kelly worked twice as many hours as megan. how many hours did they each worked?

Lydia collected two sets of data one set of data shows an outlier. which set has an outlier, and which number is the outlier?

Billie holiday sells children's clothing for sara vaughn's toddler shop. baby blankets sell for $29.99 after a markup rate based on cost of 109%. find the cost and the markup.