Hillary made 48 chocolate chip cookies and y sugar cookies. how many total cookies did hillary make?

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0

The area of a rectangle is 10 cm^2. one side of the rectangle is x cm. express the perimeter of the rectangle in terms of x and show that this rectangle cannot have a perimeter of 12 cm. the perimeter of the rectangle in terms of x is __ cm

According to the general equation for conditional probability if p(anb)=3/7 and p(b)=7/8 what is p(a i b)