The distance between two cities is ninety miles, and a woman drives from one city to the other at a rate of 45 mph. At what rate must she return if the total travel time is three hours and forty minutes?

If the area of a circle is 576 pie squared what is the circumference

On Saturday, a local hamburger shop sold a combined total of 544 hamburgers and cheeseburgers. The number of cheeseburgers sold was three times the number of hamburgers sold. How many hamburgers were sold on Saturday?

What is 50/740 simplified

The sum of two number is thirty. Using z to represent the larger number, translate "fifty more than the smaller number" into a variable and simplify

Find the gcf and lcm of 20 and 12

1. What is the constant rate of change of the table? * O A. 105 miles per hour O B. 70 miles per hour O C. 50 miles per hourOption 3 O D. 35 miles per hour

63 is 25% of what number?

Finding a sales price original 280.00 discount 80%

Euler's formula, V - E + F = 2 relates the number of vertices V, the number of edges E, and the number of faces F of a polyhedron. How many faces does a polyhedron with 5 vertices and 8 edges have?

12. x2 - 25 = 0 solve for square roots