PLS HELP. indenting the surface area of the composite figure in terms of pi

1mile equals approximately 1.6 kilometers. which best approximates the number of miles in 6 kilometers?

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 ?

Suppose y varies directly with x. write a direct variation equation that relates x and y. then find the value of y when x=12 y=7 when x=3