Joana collects the lengths of some animals and records the data in the table below. Find the mean of the data in the table. Give your answer correct to 1 decimal place where appropriate.

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?

What is the value of the expression below? 148+(-6)| + |– 35= 7|

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a,b and c integers and a> 1