A and B are complementary. the measure of A is four times as big as B. what is the measure of A. A.) 18° B.) 36° C.) 72° D.) 144° please help me!!​

[15 points, algebra 2]simplify the complex fraction and find the restrictions.

Ateacher wanted to buy a chair, a bookshelf, two tables and a desk. she spent $900 for all five items and the chair and the desk combined 70% of her total. if the bookshelf cost $50, how much did each of the tables cost?

Anne plans to increase the prices of all the items in her store by 5%. to the nearest cent, how much will an artist save if the artist buys a canvas and a frame that each measure 24 by 36 inches before the price increase goes into effect?