Ditch Digging Problem Doug Upp can dig a ditch in 3 hours. His brother Phil could dig the same ditch in 5 hours. How long would it take to dig the ditch if both work together?

The ratios 3: 9, 4: 12, 5: 15, and 6: 18 are a pattern of equivalent ratios in the ratio table. which is another ratio in this pattern?

Ariel is working at a meat packing plant for 5 nights a week. her regular wage is $11 an hour. she earns tine and a half for any overtime hours. this week she worked 9 hours of over time .how much will ariel earn for overtime this week ?

Could somebody me with this radical simplification?