Which expression is NOT equivalent to the other three?

A) - 9 - 7n + 16n

B) 9 (n - 9)

C) n - 9 + 8n

D) 9n - 9

Which of the numbers below are correctly written in scientific notation? For each that is not, rewrite it correctly. A. 4.51x10^-2 B. 0.789x10^5 C. 31.5x10^2 D. 3.008x10^-8

What value of b makes the polynomial x2+bc+16 a perfect square

18 is what percent of 90

The measures of the angles of ABC are given by the expressions in the table A (6X - 1) ° B 20° C (x + 14) ° what are the measures of angles A and C? Enter your answers in the boxes mA = mC =

Solve the variable. balance the equation 47=f+31

If the vertex of a parabola is (-6,7) what is the axis of symmetry?

A large data sample of heights of US women is normally distributed with a mean height of 64.7 inches and a standard deviation of 2.6 inches. What is the approximate probability that a randomly selected person in this sample is shorter than 62.

What is the value of 3/4 k to the 3rd power - 9 when K=3

What is a common factor for the expression 24x^2+16x+144

The total cost of 6 pens and 3 folders. A folder costs $1.15 more than a pen.