What does reciprocal mean in maths?

9x + 45 = 45 What is x?

What is 9/10 + 7/100?

What is the additive inverse of - 42? a. - 42 b. 42 c. - ( - (-42)) d. - |-42|

In january, meghan made 12 fewer sales calls than paul did. together they made 256 calls. how many calls did meghan make that month?

A car wash company charges a $4 initial fee, plus $1 for each car wash. Which equation represents this situation?

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.