How to make a equation with a limit of -3 1/2 -4 3/4 -1 3/8 -× -+ -÷ -=

In a class, there are 12 girls. if the ratio of boys to girls is 5: 4 how many boys are there in the class

You're locked out of your house. the only open window is on the second floor, 25 feet above the ground. there are bushes along the edge of the house, so you will need to place the ladder 10 feet from the house. what length ladder do you need to reach the window?

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