What is the simplified form of (x+3) / 3 + (x+6) / 3?

A. (x^2+9x+18) / 3

B. (x^2+9x+18) / 9

C. (x+3) / (x+6)

D. (2x+9) / 3

If the train went 390 miles in 3 hours, What was the speed of the train in miles per hour?

A girl and a boy each randomly grab a piece of candy from a bowl containing 9 pieces of chocolate, 7 fruit chews, 9 lollipops, and 9 peppermints. Find the probability that both events A and B will occur. Give your answer a reduced fraction.

1. The function h is the sum of the functions f (x) = 3x+5 and g (x) = 2x^2 - 6x - 2. Which represents h? A. h (x) = 5x^2 - x - 2 B. h (x) = 2x^2 - 3x + 3 C. h (x) = 2x^2 - 9x + 7 D. h (x) = - 3x + 3

Part 1 : When solving systems of equations, how do you determine what method to use? Part 2 : Choose 1 system of equations from the choices below.

a carpenter cut a triangular piece from a rectangular wooden board as shown. what is the area, in square inches, of the wooden board after the triangle piece was removed

If a ratio of boys to girls is 1:4 and there are 20 girls in your class, how many boys are there

Which pair of ratios is NOT proportional? a. 24/27 and 16/18 c. 6/15 and 8/20 b. 6/9 and 30/45 d. 20/24 and 15/21

12 more than8.2 times a number n

Aziz and tuan collected 3600 bottles for recycling last year. Aziz collected 5 times as many bottles as tuan. How many bottles did tuan collect?

Dr North piegan's practice sees 125 cats in 2010 24.8% of cats were classified as obese compared to 21.6 person in 2011 find the percent decrease in obese cat in one year