Alina has just received 3 video games for her birthday to add to her existing 12 video games. A week later she went to the thrift store and doubled her video games. Another week later she bought 5 more games.

In a class there are 27 students. Knowing that the number of girls represents 80% of the number of boys, how many girls are in the class

Find the domain of 3 √2t-1

Amelia ran a total of 60 miles in the first 3 months of her new running program. She ran equal distances in the first and second months, but ran twice that distance in the third month.

What is the solution to the linear equation? 2/3x - 1/2 = 1/3 + 5/6 x A. x=-5 B. x = - 1/6 C. x = 1/6 D. x=5

Is - 100 a irrational number

F (x) = - x^2+12x + 3 a. find f (-2) b. Find derivative f' (x)

the mean heights of people from mexico is 67 inches and the mean heights of people from honduras is 69 inches in which country are the people taller on average

Determine if the given set is a subspace of set of prime numbers P 3. Justify your answer. The set of all polynomials of the form p (t) equalsat cubed , where a is in set of real numbers R.

The height of a right triangle is 3 times the length of the base. If the area of the triangle is 54 cm^2 what is the height in centimeters

6*9/4 A street light is at the top of a 20 foot tall pole. A 6 foot tall woman walks away from the pole with a speed of 7 ft/sec along a straight path. How fast is the tip of her shadow moving when she is 45 feet from the base of the pole?