Does this expression have like terms?

13c-13d

Future Sporting Goods has a market-share factor of 25% of the retail business in Martin County. The total estimated sporting goods business in the county for next year is $15,430,000.

Y-4=-2 (x+3) missing value

Solve the system of equations y=x^2-3x+2 y=-9x-3

So if I round off 572 to the nearest 10th. would it be 570 and hundred would be 600

224percent as a fraction or mixed number in simplest form

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.