What are transformations?

If a solution has a (OH-) = 8.6 * 10-5 what is the pOH

You find that the product of 67 and 5 is 335. How can you use addition to check if you are correct? How can you use division to check if you are correct?

There are 104 students in the fourth grade at Allisons school. one day 15 4th graders were absent how many 4th graders were at school that day

A spinner is divided into 8 equal sections numbered 1 through 8. Which 2 events are disjoint? A. Spinning an even number and Spinning a 6 B. Spinning an odd number and Spinning a 3 C. Spinning a number less than 4 and Spinning a 3 D.

5x-6y=-25 and 4x-3y+20=0 How many solutions does the system have?

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.