In a sixth grade class at Lincoln Middle School, there are 3 boys for every 4 girls in the class. Fill in the blank: The ratio of boys to girls in the class is .

If there are between 20 and 30 students in the class, what could be the actual number of boys and girls in the class?

The height of a triangle is 4 in. greater than twice its base. the area of the triangle is no more than 168 in.^2. which inequalitycan be used to find the possible lengths, x, of the base of the triangle?

Arley is building a model of a city map. in one part of the city, three roads form a right triangle, which harley draws as triangle abc, with the following measures: m∠b=90° and m∠a=30°. in his scale model, the hypotenuse of triangle abc, ac¯¯¯¯¯¯¯¯, has a length of 817−−√ cm. what is the value of a (the length of bc¯¯¯¯¯¯¯¯)?

Is a positive integer raised to a negative power always positive