pLS HELP QUICKLY IF POSSIBLE don’t know if the bottom 2 are right and the answer choices are 114,17,8, or 66

Rob spent 25%, percent more time on his research project than he had planned. he spent an extra h hours on the project. which of the following expressions could represent the number of hours rob actually spent on the project? two answers

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 ?

How can you find the mean absolute deviation (mad) for this set of data?