Mr. collins made 20 bird houses to sell at a carnival. he earns $15 for each bird house he sells. how much will mr. collins earn if he sells all 20 bird houses?
a. $35
b. $55
c. $300
d. $400

The graph shows the distance y, in inches, a pendulum moves to the right (positive displacement) and to the left (negative displacement), for a given number of seconds x. how many seconds are required for the pendulum to move from its resting position and return? enter your answer in the box.

What is coefficient of the term of degree of degree 5 in the polynomial below

Ahypothesis is: a the average squared deviations about the mean of a distribution of values b) an empirically testable statement that is an unproven supposition developed in order to explain phenomena a statement that asserts the status quo; that is, any change from what has been c) thought to be true is due to random sampling order da statement that is the opposite of the null hypothesis e) the error made by rejecting the null hypothesis when it is true