Kia buys a shirt that costs 12.50 dollars and some pairs of socks that are 2.50 dollars each. She pays a total of 27.50 dollars. How many pairs of socks did Kia buy

For the equations below which statement is true ?

Astick 2 m long is placed vertically at point b. the top of the stick is in line with the top of a tree as seen from point a, which is 3 m from the stick and 30 m from the tree. how tall is the tree?

Ametal rod needs to be 9 feet and 5.5 inches in length. the sections of the poles being used are each 1 foot and 10.5 inches long. how many 1ft 10.5in sections would be needed to complete the 9ft 5.5in metal rod? and how many inches of material will be left?