Which expression could be represented by the model shown below? a) 2x(3x+1)b) x^2(x+1)c) 2(x^2+1)d) 2(3x^2+1)

Maria walks a round trip of 0.75 mile to school every day.how many miles will she walk in 4.5 days

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. 4x^2 + 20x + 25 = 0

Indicate the formula for the following conditions: p^c(n,r)=