Use the model to find the missing number in the pair of
equivalent expressions.
15 + 9 = ?(5+3)
What number is missing from the expression?

You will get 25 points an image of a rectangular prism is shown below: part a: a cross section of the prism is cut with a plane parallel to the base. what is the name of the shape created by the cross section? explain your answer. (5 points) part b: if a cross section of the prism is cut perpendicular to the base, what would be the shape of the resulting cross section? explain your answer. (5 points)

Solve each quadratic equation by factoring and using the zero product property. [tex]x^2+6x+8=0[/tex]

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.