Write the ratio of height of the building to the number of floors then find the unit rate explain what is really means in the situation

If x=-3 is the only x-intercept of the graph of a quadratic equation, which statement best discribes the discriminant of the equation?

Which number line correctly shows 0.8 + 0.3?

One file clerk can file 10 folders per minute. a second file clerk can file 11 folders per minute. how many minutes would the two clerks together take to file 672 folders?