Absolute magnitude of a star that has a period of 50 days

Evaluate the expression for the given value of the variable 2×(c2-5) for c=4

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 ?

If each bricks costs and he can only buy one brick how much will it cost him to get the material to put around the outside of his garden?