To solve, add the number of hours the person is working on Saturday and Sunday.
`8 + 8 =16 ` hours
Then, multiply his total working hours on the weekends by his rate per hour ($18).
`16` `hrs` `xx` `($18)/(hr)` `=` `$288`
Hence, his gross wage for the weekends is $288.
another note: that person is working at a weekend festival just for saturday and sunday.