If n = 90, what is the value of s?

n/10 - 4 = s

Mr. Rivera can grade 18 math teat in 15minutes. What is the teachers unit rate?

6 1/4 as a mixed number

Your school has a $1200 grant to buy books and magazine subscriptions for the school library. The avarage cost of magazine subscription is $30. Your school decided to spend $870 on books and the remaining amout on magazine subscriptions.

Determine whether the conjecture is true or false. Give a counterexample for any false conjecture. Given: Two angles are supplementary. Conjecture: They are both acute angles. Question 11 options: False; either both are right or one is obtuse.

2x+y=4 6x+5y=16 if (x, y) is the solution to the given system of equation, what is the value of y?

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.