Agirl always keep her laptop at right angle, if we make a triangle by keeping one paper on laptop. one angle formed is 60. what is the value of 3rd angle?

Astudent is solving a system of equations by substitution and comes up with the solution 3 = 3. assuming that he solved the problem correctly, which of the following can be said about this system of equations?

What is 0.625 as a % ? ? i dont know math

Arectangle has a base of 5 inches and a height of 7 inches. if the dimensions are cut in half, what will happen to the area of the rectangle? it will be half of the original size. it will be the same as the original size. it will be four times the original size. it will be one-fourth the original size.