X^2 + y^2=40 and y=x-4 solve this simultaneous equation

MS. Adderly had 3 watermelons that she cuts into halves to give to her neighbors. How many neighbors will get a 1/2 size piece of watermelon?

What is x and y if 13x+13y=146

What is the simplified form of 9-m^-3n^5 x 2m^-3n^-6 A.) - 18m^5n B.) - 18/m^5n C.) - 18m^6/n^30 D.) - 18m^6n^30 I think it's either C or D

Suppose 2kg of a radioactive substance decays to 250g in 75years. what is the half-life of the substance?

6 fewer than the product of b and 3

A large farm has 75 acres of wheat and 62.5 acres of corn. The farm crew can harvest the the wheat from 12 acres and the corn from 10 acres per day. In how many days will all of the fields be harvested?

Piece of rope that is 15 ft long what is the area

What's the temperature difference between - 5 degrees and 25 degrees? A. 20 degrees B. 25 degrees C. 30 degrees D. 35 degrees

He school has 800 students with 20 students on the gymnastic team and 10 students on the chess team (including 3 students who are on both teams). How many students in the school are not members of either the gymnastic team or the chess team?

What method can you use to find the product of 70*55