I’ve forgotten how to change fractions, can anyone explain 1/3 + 1/4?

The base of a triangle exceeds the height by 9 inches. if the area is 180 square inches, find the length of the base and the height of the triangle.

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.

When keisha installed a fence along the 200 foot perimeter of her rectangular back yard, she left an opening for a gate.in the diagram below, she used x to represent the length in feet of the gate? what is the value? a. 10 b. 20 c. 25 d. 30