91Ó°ÊÓ

Write an equation that describes each sequence. Then find the indicated term. Eight more than five times a number is \(78 .\) Find the number.

Find each number. PERSONAL CARE In nine visits to the styling salon, Andre had spent \(\$ 169\) for haircuts. Of that amount, \(\$ 16\) was in tips. Write and solve an equation to find how much Andre pays for each haircut before the tip.

Simplify each expression. $$-4(x-2)$$

If \(\frac{x}{10}=3,\) what is the value of \(7 x+13 ?\)

A ticket to a soccer game is \(\$ 12,\) a team pennant is \(\$ 7,\) and a T-shirt is \(\$ 15 .\) Write two equivalent expressions for the total cost of a group outing for 10 people if each person buys a ticket, a pennant, and a T-shirt. Then find the cost, lesson 3.1 )

Simplify each expression. $$6 z-3-10 z+7$$

On Saturday, the temperature fell 10 degrees in 2 hours. Find the integer that expresses the temperature change per hour. (lesson 2.5 )

Use the Distributive Property to write each expression as an equivalent algebraic expression. $$2(x+y)$$

Explain how equations are used to find the U.S. value of foreign currency. Illustrate your reasoning by finding the cost in U.S. dollars of a 12 -pound bus trip in Egypt, if 6 pounds can be exchanged for one U.S. dollar.

BUSINESS Jarret bought old bikes at an auction for \(\$ 350 .\) He fixed them and sold them for \(\$ 50\) each. He made a \(\$ 6200\) profit. Write and solve an equation to determine how many bikes he sold.