Simplify.

3-4z+5z-1+z

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The average score on a biology test was72.1 write the average score using a fraction

Theo has 10 cookies. He eats 6 of those cookies he gives 4 cookies to each of his 4 friends. How many cookies does Theo's mother get?

Write a real-world problem that compares the ratios 5 to 9 and 12 to 15

Using addition formulas for sine and cosine to simplify the expression: cos (2pi/9) cos (pi/18) sin (2pi/9) sin (pi/18) I want to learn it the normal way first before I add my instructors instructions to place S=45 & T = 30.

Complete the equation of variation where y varies inversely as x. one pair of values is y = 45 when x = 20.

Find all solutions in the interval [0, 2π). 7 tan^3x - 21 tan x = 0 A) pi/3, 2pi/3, 4pi/3, 5pi/3 B) 0, pi/5, π, 6pi/5 C) 0, pi/3, 2pi/3, π, 4pi/3, 5pi/3 D) 0, pi/3, π, 4pi/3

Which group of numbers is listed from least to greatest? -4, |-2|, |3|, 5, |-7| |-6|, - 4, |-2|, - 1, 0 -8, |-5|, - 4, |3|, 6 -6, |-3|, - 3, 6, |-9|

Solve the equation using the properties of equality. x/4 + 3 = 15

A triangle has two sides mausuring 8.5 cm and 15 CM. What are the least and greatest while number possibilities for the third side?

When Joanne checked her Work by substituting the value of the variable back into the equation she got an answer of 12.34 equals 12.