Ratio of the perimeters of two rectangles is 5 to 8. the perimeter of the larger rectangle is 72 inches. what is the perimeter of the smaller rectangle?

(a) calculate the molarity of a solution that contains 0.0345 mol nh4cl in 400 ml of solution. (b) how many moles of hno3 are present in 35.0 ml of a 2.20 m solution of nitric acid? (c) how many milliliters of 1.50 m koh solution are needed to supply 0.125 mil of koh ?

Can you divide 25 into 4 equal groups? explain why or why not.

Astudent drew a circle and two secant segment. he concluded that if pq ~= ps, then qr ~= st. do you agree with the student’s conclusion? why or why not?