What property is a b = b a

Mr simmons bought 12 crates of oranges. each crate contained h oranges. nr simmons threw away 20 rotten oranges and sold the rest at 50 cents each. how much money did he recieve from the sale of the oranges

Mr. Chaves spent $199.99 for a new smart phone $39.99 on a carrying case, and $59.99 on accesiories. The expression l-199.99l+l39.99l+l59.99l represents the total amount that Mr. Chaves spent. How much did he spend all together.

Which polygon appears to be regular? Figure A Figure B Figure C Figure D Figure A is a kite. Figure B is a trapezoid. Figure C is an equilateral triangle. Figure D is a parallelogram.

How do you solve 2 7/10 + 2 4/5?

An equation that is true for every possible value of the variable

A newspaper reporter wants to know how popular the hobby of bird watching is in the city. He asked people at the local bird refuge if they watched birds as a hobby. Which of the following best explains whether the reporters data is valid or not?

I am very confused on how to figure out if y = 3/4x is proportional?

Alison wants to buy a mountain bike for $339.12. If she saves $28.26 each month, in how many months will she be able to buy the bike?

At 12 o'clock the temperature was 7°C. The temperature decreased by - 20°C. What is the new temperature?

Ashleys rentals charges $27.50 per hour to rent a surfboard and a wetsuit. Darlas surf shop charges $23.25 per hour to rent a surfboard plus $17 extra for a wetsuit.