Answer:
13.5 cm
Step-by-step explanation:
9 divided by 2 = 4.5 *There's a 4.5 increase
3 X 4.5 = 13.5
The new print is 13.5cm by 9cm
8
ab = 2 * 4 = 8
121 books
bc that equals 11 so there are 11 squares plus the two missing ones from before so u do 11x11 which would be 121
hope this helps :>
B) construct the center of a given circle