George is 60. His daughter Jessica is 3/5 of his age. His grandson Luke is 4/15 of his age. How many years older than Luke is Jessica?

1.68 meters to centimeters

The volume of each cube is given. Estimate the side length of the cube to the nearest integer. Use the formula V=s (cubed). The volume of the cube is 520cm cubed

my two bases are hexagons and my other faces are rectangles

A circular racetrack has a radius of 500 m. what is the displacement of a bicyclist when she trave

The formula for the area a of a triangle is a equals 1 half b where is the base and h is the height. solve the formula for h and then find the height of a triangle whose area is 1768 square inches and whose base is 52 inches.

In the library, 6 students are working on math. Of those 6 students, 2/3 of them are working on fraction. How many students are working on fractions?

What is the quotient of - 1 4/5 and 2 1/4?

What is the exact distance from parentheses - 4, - 2 what is the exact distance from parentheses - 4, - 2 to parentheses four, six

Which number produces an irrational number when multiplied by 0.5

In Lisa class, 24 of the students are tall and 12 are short. In Paul's class 15 students are tall and 20 students are short. Which class has a higher ratio of tall to short students?