Which expression is equivalent to (3x-5y) + (x+2y) ?

1. 4x-7y

2. 4x-3y

3. 4x+3y

4. 4x+7y

Why did the kindergartner take her books to the zoo?

The number 1,254 is divisible by all of the following, except

Nicholas drew a triangle with 45, 35, and 100 degree angles. Is there another triangle with the same three angles but different side lengths?

The sum of partial products is equal to the final product?

If there are 40 boys and 60 girls in a room, fill out all possible ratios of boys to girls that could be made.

Sid wrote 541,309 on his paper. Using words and numbers explain how the number would change if he switched the digits in the hundred thousands and tens place

A batch of 330 samples of rejuvenated mitochondria contains 6 that are mutated (or defective). Two are selected from the batch, at random, without replacement.

What is the equation form of a pure quadratic? a. ax^2+bx=0 b. ax^2+c=0 c. ax^2+bx=c d. ax^2+c=bx

The horsepower, H (s), required for a racecar to overcome wind resistance is given by the function : H (s) = 0.003s^2+0.07s-0.027, where (s) is the speed of the car in miles per hours.

Is 20, 10, 9 a triangle