Which method do you prefer, using a giant one or a percent ruler? why? -

Acoin bank containing only dimes and quarters has 12 more dimes than quarters. the total value of the coins is $11. how many quarters and dimes are in the coin bank?

Given: klmn is a parallelogram m? n=3m? k, lf ? kn , ld ? nm kf=2 cm, fn=4 cm find: lf, ld

Petes dog weighed 30 pounds it then lost 16% of it's weight how much did pete lose