One maid cleaned the room in 30 minutes. A new maid cleaned it in 60 minutes. How long will it take to clean this room if both maids work together

Factor out the gcf 63+45b

Faced with rising fax costs, a firm issued a guideline that transmissions of 10 pages or more should be sent by 2-day mail instead. Exceptions are allowed, but they want the average to be 10 or below.

What is 430 rounded to the nearest 100

A car is traveling at a speed of 48 miles per hour. What is the car's speed in miles per minute? How many miles will the car travel in 2 minutes? Do not round your answers.

Conversión a fracción de 0.355

What is the greatest common factor of 2 and 30

Homer's annual salary is $74,308. If he works all 52 weeks a year, how much is he paid each week?

1. In a poll of students at the basketball championship, 82% of the students say that basketball is better than football. (a) Explain why it is not a valid conclusion to say that basketball is more popular than football at the school.

Whitney kicks a football off the ground. The height, h, in feet, of the football above the ground after t seconds is given by h (t) = - 8t2 + 32t.

In a school, the ratio of the number of pupils to the number of teachers is 20:1. If the number of pupils is 840, how many teachers are there?