Which value for x makes the sentence true?
3/4x + 4 += 7

Find the complete factored form of the polynomial 40m^3n^2+45m^2n^6

Two years ago a man was six times as old as his daughter. in 18 years he will be twice as old as his daughter. determine their present ages.

From the top of a tree a bird looks down on a field mouse at an angle of depression of 50°. if the field mouse is 40 meters from the base of the tree, find the vertical distance from the ground to the bird's eyes.