C. Lena can also make shelves that are the shape and size of the piece of board shown How many shelves of this shape and size could she make from the original board?
D. Lena wants to use a new board of a different size. This board is shown below. Lena use one entire bored to make 4 shelves each shelf will be the same shape and size she needs to make 4 shelves that are each the same shape and size

i think 1: 2

step-by-step explanation:

answer: all of the odd numbers were opened

the first person was the one that was opening all of the lockers. since one is odd, this causes all of the odd number lockers to be opened in the end.

47 - 90 = 43

43 - 180 = x

x = 137

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;