Ty rode his trail bike for 4.5 hours. his average speed was 12 miles per hour. how many miles did he ride?

Joseph haydn pet store offers wide variety of leashes for dogs. the store purchases one popular type of leash from its manufacturer for $4.38 each. joseph haydn pets marks up leashes at a rate of 238% of cost. what is the retail price of the popular leash?

If tan2a=cot(a+60), find the value of a, where 2a is an acute angle

Square a has a side length of (2x-7) and square b has a side length of (-4x+18). how much bigger is the perimeter of square b than square a?and show all work! you so