Exam 1: Solving Linear Equations and Inequalities

Solve. -A salesperson has two job offers. Company A offers a weekly salary of $160 plus commission of 8% of sales. Company B offers a weekly salary of $320 plus commission of 4% of sales. What is the amount of sales above Which Company A's offer is the better of the two?

Solve for the given letter. -

Solve for the given letter. -

Solve for the given letter. -

Solve the problem. -The area of a square is given by where S is the length of a side. What is the area of a square with side 3.6 cm?

Write interval notation for the graph. -

Determine whether it is true or false that the given number is a solution of the equation. -

Solve using the addition and multiplication principles together. --5y + 2 = 6 - 2y

Solve. -Photography reprints cost $0.52 each at a local photo shop. Through the mail, they cost $0.44 each plus $1.20 postage and handling. How many reprints must a customer purchase to make it less expensive to use mail Order?

Solve. -A salesperson earned $300 a week plus a bonus of $16 for each service contract sold. If the pay one week was $428 how many service contracts were sold?

Solve. -

Solve. -

Determine whether it is true or false that the given number is a solution of the equation. -

Solve. -Bill swims at a speed of 6.1 mph in still water. The river he's in flows at a speed of 2.3 mph. How long will it take Bill to swim 2.1 mi upstream? Round your answer to the nearest tenth of an hour, if necessary.

Solve for the given letter. -

Solve. -

Write interval notation. -

Solve for the given letter. -a + b = s + r for r

Solve the compound inequality. Express the solution using interval notation. Graph the solution set. -

Solve the problem. -The amount of simple interest I generated by principal P, annual interest rate r, and time t in years is given by I = Prt. Find the interest if t = 7 years, P = $100, and r = 0.04.