What is the value of 4 in the number 358.547?

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50.

There are a total of 75 students in the robotics club and science club. the science club has 9 more students than the robotics club. how many students are in the science club?