9 The circumference of circle B is 90% of the circumference of circle A. (a) Find the ratio of the area of circle A to the area of circle B.

Shryia read a 481 -page-long book cover to cover in a single session, at a constant rate. after reading for 1.5 hours, she had 403 pages left to read. how fast was shryia reading? pages per hour how long did it take her to read the entire book? hours plz i realy need this

What is (28 + 7 + 6 + 3) x 1/2 show your work

One number is 4 less than 3 times a second number. if 3 more than two times the first number is decreased by 2 times the second number, the result is 11. use the substitution method. what is the first number?