Algebra Mid-term

What is the simplified form of the expression 3 + 8x − 2y − x + 1 + 4y? : Write an algebraic expression for the phrase the sum of g and 3.

Write a word phrase for −5 − 4n. : Evaluate the expression 9(a + 2b) + c for a = −3, b = −2, and c = 1.

Ms. Hader split her class up into n debate teams. Each team has 4 students. Choose the graph that describes the total number of students, s, in Ms. Hader's class. If there are 9 teams, how many students are in the class? : Simplify the expression.7/4÷(3/2)

Simplify the expression.−(−5 + 4m) : Simplify the expression.−9(4 − 3j)

Solve the equation.8x − 5 = 12x + 1 : Solve the equation.−3(r−1/3)=3

Solve the equation.0.3b = 8.1 : Solve the proportion.x−3/2=x+8/6

Define a variable and write an equation to model the situation. Then solve.Of 630 students in a school, 270 went to the school dance. About what percent of the students went to the dance? : Explain which is more accurate: measuring to the nearest centimeter or to the nearest half inch?

Anna traveled 26.2 miles in 4 hours. Lance traveled 19.3 miles in 3 hours. How can you tell who is traveling faster? Find the rates of each person. Round to the nearest tenth. : The cost of a DVD box set increased from $30 to $35. A student says that this represents a 5% increase in the price. Explain the student's error. What is the actual percent increase?

Suppose A = {x |x ≤ −2, x ≥ 3} and B = {x | −1 ≤ x < 5}. Which statement is true? : Solve the equation.|3 − w| = −2

Solve the equation.8| n | − 1 = 15 : Suppose you work in a clothing store. Each week you earn $250 plus a commission equal to 2.5% of your sales. This week your goal is to earn no less than $350. Write and solve an inequality to find the amount of sales you must have to reach your goal.

Viola can work no more than 11 hours a week at her part-time job. She gets paid $7.75 per hour. Let p stand for the amount she gets paid for h hours. What domain and range are reasonable for this situation? : Find the range of the function for the domain {−3, 1, 4.5}.y = −x + 1

Find the range of the function for the domain {−3, 1, 4.5}.f(x) = 2x expontent 2 : Find the third, eighth, and tenth terms of the sequence described by the rule.A(n) = 6 + (n − 5) 2

The rate for mailing an envelope is $0.80 per ounce. Choose a function rule that represents the total cost, c(w), to mail an envelope weighing w ounces. How much will it cost to mail an envelope that weighs 5 ounces? : Write in miles per hour. Round to the nearest tenth.211 ft/s