12. Tonya is 1.5 m tall. She stands 8 m in front of a tree and casts a shadow 2 m long. How tall is the tree?

1)

2)

Step-by-step explanation:

Mrs. Sims has to put 22 books.

She can either put them in stacks of 10 or arrange them as single book(single stack).

There could be two ways in which she could arrange the books.

First way:

She could arrange the books in two stacks of 10 books ( and the remaining two books can be arranged as single books.

So, the arrangement is

Second way:

She could arrange books in one stack of 10 books and and remaining twelve books can be arranged as single books.

So, the arrangement is