Which property explains why these two expressions are equal?

(w +

2

3

) + 5 = w + (

2

3

+ 5)

Which is the smallest number out of - 13, - 117, 2 and 0?

Two numbers are called relatively prime if their greatest common divisor is $1$. Grogg's favorite number is the product of the integers from $1$ to $10$.

How many times larger is the value 250,000 than 250?

A museum opened at 8:00 am. In the first hour, 350 people purchased admission tickets. In the second hour, 20% more people purchased admission tickets than in the first hour. Each admission tickets cost $17.50.

Explain how you would convert 4m to millimeters

What value of a makes the equation true? 1.7a+0.3a=4/5 1. a=2/5 2. a=2 4/5 3. a = - 1 1/5 4. a = 1 3/5

Solve 6x + 26x - 10 = 8 (4x + 10).

Solve 2b+8 (6b-3) = 25+b

During Sonia's trip across the country that she travel 2884 miles her trip took 7 Days find a unit rate to represent the average amount of travel per day during the trip

If you stacked Avogadro's number of pennies one on top of the other on Earth's surface, how far would the stack extend (in kilometers) ?