Expressions equivalent to p•3•r•2

Solve for x. 273x 9x = 243 A) x = 2 B) x = 5 7 C) x = 4 3 D) x = - 1

The distance between two cities on a map is3.5 the map uses a scale which one centimeter represents 20 kilometers what is the actual distance bettween this two cities in kilometers

Find the least common denominator for these two rational expressions - 4/a^2 and 5/3a

Evaluate (ab) ^2 for a=3 and b=4

Factor the expression below. 16x^2-49

The surface area of 10ft 7ft 10ft

Find the diameter and radius of a circle given the approximate circumference of 38 meters. (3.14 for pi) Sorry for these questions but I just don't understand them; -;

A jar contains 6 red marbles, 12 blue marbles, and 2 green marbles. if one marble is selected at random, find the probaility of select: a blue or a green marble

is - 0.28764 rational or irrational and how do you figure that out?

Whats the nearest 100 to 469019