HELP ME PLEASE!! Fred was told to simplify (2x + 5)2. His work is below.

(2x + 5)2 = (2x)2 + (5)2 = 4x2 + 25
Part A: Explain what mistake Fred made while doing the problem.

Part B: What is the correct answer to the problem Fred was given?

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

What is the range of the function? f(x)=-2|x+1|? a. all real numbers. b. all real numbers less than or equal to 0. c. all real numbers less than or equal to 1. d. all real numbers greater than or equal to 1

From the top of a tree a bird looks down on a field mouse at an angle of depression of 50°. if the field mouse is 40 meters from the base of the tree, find the vertical distance from the ground to the bird's eyes.