Given the diagram below, rachel writes m4 + m5 + m6 = 540degrees - 180degrees. which of the following reasons allows her to write this statement?

Adj has a total of 1075 dance and rock songs on her system. the dance selection is 4 times the size of the rock selection. write a system of equations to represent the situation.

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

Abicycle training wheel has a radius of 3 inches. the bicycle wheel has a radius of 10 inches. approximately how much smaller, in square inches and rounded to the nearest hundredth, is the area of the training wheel than the area of the regular wheel? *