What is the exact value of cos 30 degrees

Ms. Brady has 28 students in her class. The ratio of boys to girls in the class is 2 to 5. How many new boys must be added to the class to make the ratio of boys to girls 1 to 2?

Is the relation a function? { (-6, - 1), (5,-1), (0, - 1), (-2, - 1), (3, - 1) }

Seventy-four millon is how much less than one billon?

Michelle leaves her house at 5:20 Am To Get To Work, Which is 20 miles away. If she drives 40 miles an hour, what time will she arrive at work

Lue is rolling a random number cube. the cube has six sides and each one is labeled with a different number 1 through 6. what is the probability that he will roll a sum of 12 in two rolls

There are 10 fish in a tank 5 dround how many are left

The area of the rectangle is 4000 square meters. What is the perimeter of the track? Use 3.14 for pi.

What is the percentage of 10 out of 25

2 units / 3 units if you triple the recipe would the rate change

Solve for x. - 3x + 6 = 2x - 24 A) - 30 B) - 6 C) 6 D) 30