What property is 53+6=6+53

Can someone lead me through the steps ... IDK what to do Solve for F.

a movie ticket cost 6.50. you have 35.00 to buy tickets and popcorn for four people. how much money is left to buy popcorn after the tickets are paid for?

Find the cost per pound of a coffee mixture made from 6 lb of coffee that costs $9.70 per pound and 12 lb of coffee that costs $5.50 per pound.

3 (x-4) + 5x=4x+4 (x-3) is this conditional

P (total shown=3) rolling two fair number cubes

Which describes a correct way to construct a scatterplot? When analyzing the number of junk e-mails received each day of the week, the number of junk e-mails is the independent variable.

The measure of each interior angle of a regular polygon is 140 degrees, how many sides does the polygon have

Find the smallest whole number that has exactly 12 factors

Find an explicit formula for the arithmetic sequence 12, 5, - 2, - 9, ...

What's the common denominator for 4 and 3