0. Review of Algebra

State the name of the property illustrated: (3 • 7) + (4 • 7) = (4 • 7) + (3 •7)

Determine whether each statement is true or false. |5+(-13) | = |5| + |-13|

A football was kicked vertically upward from a height of 4 feet with an initial speed of 60 feet per second. The formula h=4+60t-16t² describes the ball's height above the ground, h, in feet, t seconds after it was kicked. Use this formula to solve Exercises 19–20. What was the ball's height 2 seconds after it was kicked?

Use set notation, and list all the elements of each set. {12, 13, 14,..., 20}

Write each improper fraction as a mixed number. 77/12

Determine whether each statement is true or false. |8-12| = |8| - |12|

Find the intersection of the sets. {1,2,3,4}∩{2,4,5}

Use set notation, and list all the elements of each set. {1, 1/2, 1/4, ...., 1/32} .

Write each mixed number as an improper fraction. $2\frac{3}{5}$

Determine whether each statement is true or false. |-5| ∙ |6| = |-5∙6|

Use set notation, and list all the elements of each set. {17, 22, 27, .. , 47}