nd help pl, um its algebra fyi

1/2 n =18

n=

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Consider the polynomials given below. p(x) = x4 + 3x3 + 2x2 – x + 2 q(x) = (x3 + 2x2 + 3)(x2 – 2) determine the operation that results in the simplified expression below. 35 + x4 – 573 - 3x2 + x - 8 a. p+q b. pq c.q-p d. p-q