E) Andy is 2 times younger than his sister and his father is 25 years older than him. If the total of their ages is 53 years, what is Andy's age and his father's age?

A gemstone is cut in the shape of a triangular pyramid. The area of the base of the pyramid is 42 square millimeters. the height of the pyramid is 4 millimeters. what is the volume of the gemstone.

Express as a trinomial: (2x-3) (x + 5)

Find the x-intercept of the rational function. A rational function is graphed in the second quadrant, and in the first, third and fourth quadrants are other pieces of the graph. The graph crosses the x axis at 6 and crosses the y axis at negative 2.

Eric has 112 books. each shelf holds 10 books. how many shelves can Eric fill completely?

What is the constant of porportionality of y=4/7x

Emma seys that the preduct of a 3-digit number and a 1-digit number will be either a 3 digit number or a 4 digit number. Does Emma's statement make sense

Work out the value of these two questions: 1) 3^2 + 2^3 2) 2^4 - 3^2

What is 5 1/4 divided 2 2/7

What is the solution to the system of equations? Use the substitution method. {y=-2x+5 {3x-4y=2 Enter your answer in the boxes.

Absolute value of - 1 + 3i