Two parter part 2 use the foil method to solve 15-21 15: (k+5) (k-1) 16: (x-4) (x+8) 17: (q-3) (q-4) 18: (z-5) (z-9) 19: (t+2) (2t+1) 20: (5v-3) (2v+4) 21: (9-r) (2-3r)

Plz determine whether the polynomial is a difference of squares and if it is, factor it. y2 – 196 is a difference of squares: (y + 14)2 is a difference of squares: (y – 14)2 is a difference of squares: (y + 14)(y – 14) is not a difference of squares

Which of the following three dimensional figures has a circle as it’s base

Out of 50 students surveyed, 16 have a dog. based on these results, predict how many of the 280 students in the school have a dog.