Need with this problem, i am not too sure how to begin solving

Given that abcd is a rhombus, what is the value of x?

Triangle dog was rotated to create triangle d'o'g'. describe the transformation using details and degrees.

Ben frank is an electrician who installs lighting fixtures. he charges (in dollars) his clients 15h+40f15h+40f where hh is the number of hours worked and ff is the number of fixtures installed. how much does ben frank charge when he works 77 hours and installs 99 fixtures?