# Numbers, Expressions, and Equations, algebra homework help

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Math | Graded Assignment | Unit Test, Part 2 | Numbers, Expressions, and Equations
Name:
Date:
Unit Test, Part 2: Numbers, Expressions, and Equations
Answer the questions below. When you have finished, submit this assignment to your teacher by the due date for
full credit.
Total score: ____ of 20 points
(Score for Question 1: ___ of 5 points)
1.
Isaac goes to an amusement park where tickets for the rides cost \$10 per sheet and tickets for the shows
cost \$15 each.
(a) Write an expression that describes the amount of money Isaac will spend if he buys x sheets of the
tickets for rides and y tickets for shows.
(b) Evaluate the expression to find the total price that Isaac will pay if he buys 5 sheets of tickets for rides
and 3 tickets for shows.
Copying or distributing w ithout K12’s w ritten consent is prohibited.
Page 1 of 3
Math | Graded Assignment | Unit Test, Part 2 | Numbers, Expressions, and Equations
(Score for Question 2: ___ of 10 points)
2.
Allegra has a cell-phone plan that charges \$65 per month and \$0.10 for every minute that she uses the phone
beyond what her plan allows. One month, she was billed \$73.40.
(a) Define a variable for the unknown.
(b) Write an equation to model the problem.
(c) Solve the equation. Show your work.
(d) Find the number of minutes that Allegra went over the time that the plan allows.
Copying or distributing w ithout K12’s w ritten consent is prohibited.
Page 2 of 3
Math | Graded Assignment | Unit Test, Part 2 | Numbers, Expressions, and Equations
(Score for Question 3: ___ of 5 points)
3.
Andrea wants to deposit money into a bank account that earns 4% simple annual interest. Use the formula to
find the amount of money that she should deposit so that she earns \$2800 after 3.5 years. Show and explain
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