Answer:
22.5% increase.
Step-by-step explanation:
Because her collection grows by 9, that means it increases by 9/40 total. As a decimal, this would be 0.225. Then, as a percent you multiply that by 100 to get 22.5%. Pilar's collection increased by 22.5%
Answer:
2 out of every 5; 2:3; 2:5
Step-by-step explanation:
2 out of every 5 means that out of 5, he/she picks two (leftover 3)
the other choices are a ratio of if he/she has 2 of that then they will also have 5 of this
So this is complicated, but to get a general idea simple we use common sense and say its bigger than 4, since its length is bigger than the supposed 4 length. So then we get the options 6, 5, and 24. Now we can do some basic math and figure that the circle radius is around 4 so its probably 6 or 5. Slim change of 24.
People who did the physical math can check it with my answer.
