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![Lesson 55 Warm-Up:
1) Simplify and express with positive exponents:
xyx0y-2x-1
2) Solve: [show all steps for full credit]
3x + 7 - x = 21
3) Simplify: -2(x - y) - 3(x + y)
4) Write 120% as a decimal and as a reduced fraction.
5) Find all solutions: -3|x| = -3
2](https://image.slidesharecdn.com/7thprealg-l55-feb3-120203131754-phpapp02/85/7th-PreAlg-L55-Feb3-2-320.jpg)



The document contains an assignment with 5 math problems due on Tuesday, February 7th. It provides lesson material on nets and the surface area formula for cylinders. It includes 4 examples calculating the surface area of cylinders with different radii and heights. The student is asked to find the net, simplify expressions, solve equations, write a percentage as a decimal and fraction, and find all solutions to an absolute value equation.

![Lesson 55 Warm-Up:
1) Simplify and express with positive exponents:
xyx0y-2x-1
2) Solve: [show all steps for full credit]
3x + 7 - x = 21
3) Simplify: -2(x - y) - 3(x + y)
4) Write 120% as a decimal and as a reduced fraction.
5) Find all solutions: -3|x| = -3
2](https://image.slidesharecdn.com/7thprealg-l55-feb3-120203131754-phpapp02/85/7th-PreAlg-L55-Feb3-2-320.jpg)


