Evaluate 10.5s + 9.9t when s=3 and t = 4

A(t)=728(1+0.04)^t how much money did aditya originally invest

The rumpart family is building a new room onto their house. the width of the new room will be 16 feet. the length of the room will be 4% greater than the width. write an expression to find the length of the new room. what will be the area of this new room?

Which expression is equivalent to -5(3x - 6/7)