How to find the domain of a composite function?

In which number is the value represented by the digit 9 equal to 110 of the value represented by the digit 9 in the number 73,951?

How can you tell if a trinomial is the square of a binomial?

1/5 (n+3) = 1/4 (n+2). what is N=

If the nth partial sum of the sequence an is given by n Sigma 2k+4 k=1 Then what is the nth term of the sequence? A. 6 B. 2n+4 C. 6+8+10+12 + ... + (2n+4) D. 2 (1) + 4+2 (n) + 4

What is the lcm for 7,14,16

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.