what would be the second step in simplifying the expression 4 2 ÷ (2 • 9) + 5?

multiply
divide
add
exponent

Find and simplify the difference of the golden ratio and its multiplicative inverse

Kayla wants to find the width, ab, of a river. she walks along the edge of the river 65 ft and marks point c. then she walks 25 ft further and marks point d. she turns 90° and walks until her location, point a, and point c are collinear. she marks point e at this location, as shown. (a) can kayla conclude that δ and δ are similar? why or why not? (b) suppose de = 15 ft. what can kayla conclude about the width of the river?

Matt had 5 library books. he checked out 1 additional book every week without retuening any books. whats the matching equation