What x2-21x-100 in standard form

The equation is 4 1/5-7/10. How do u rename 4 1/5

Cómo se resuelven las ecuaciones químicas?

24 miles in T hours, 32 miles in T hours

Does The fraction 1/2 make the equation 1/7 + 1/2 = 1/9 true?

Krysti is ordering t-shirts for 20 classmates. she knows that 75 % of the classmates want the small small size. in her her order, krysti mistakenly asked for 25 small shirts.

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.