Which property explains why these two expressions are equal?

(W + 2/3) + 5=W + (2/3+5)

Hugh bought some magazines that cost $3.95 each and some books that cost $8.95 each. He spent a total of $47.65 let him represent the number of magazine and B represents the number of books which equation models the situation

Mrs. Carlson wrote the following question for her class: "Ricardo's basketball team is selling raffle tickets, Each ticket costs $0.75, They want to sell $285 worth of raffle tickets. So far, they have sold $75 worth of tickets.

Sean spends 49 minutes doing his homework or about 38% of the total time he will spend. About how long will he spend doing his homework?

A line with a slope of - 2 crosses the y-axis at (0, 3). The equation of the line is?

Coles has cut the price of Cadbury's chocolate bars by 20%. Their normal price is $3.45. A shareholder who has a Coles-Myer discount card is also entitled to a further discount of 7.5%. What would a shareholder save on the normal price?

F (x) = 3x + 2 what is f (5) A 21 B 10 C 17 D 15

The lowest elevation in vermont is 95 feet above sea level. the lowest elevation in louisiana is 8 feet below sea level. what integer represents the lowest elevation in vermont

Find the Positive, Negative and Complex Roots of the following Function f (x) = x^6-x^5-12x-x^4+4x^3-12x^2+12

Factor 3x^2 + 2x - 18x - 12

For a school fund raising project, Aiden and Jacob collected money in the ratio 3.5 : 6.8. Jacob collected $115.50 more than Aiden. Find the total amount of money they collected.