What is the simplified expression for 5ab+9ab-ab?

How many square feet of out door carpet will we need for this hole? 8ft 3ft 12ft 4ft

60 2(x + 2) in the diagram, gef and hef are congruent. what is the value of x?

Acoffee shop orders at most $3,500 worth of coffee and tea. the shop needs to make a profit of at least $1,900 on the order. the possible combinations of coffee and tea for this order are given by this system of inequalities, where c = pounds of coffee and t = pounds of tea: 6c + 13t ≤ 3,500 3.50c + 4t ≥ 1,900 which graph's shaded region represents the possible combinations of coffee and tea for this order?