Problem 49
Solve the percent problem. 41 inches is what percent of 50 inches?
Problem 55
Use the following information. You and a friend go hiking. You hike 3 miles north and 2 miles west. Starting from the same point, your friend hikes 4 miles east and 1 mile south. If you and your friend want to meet for lunch, where could you meet so that both of you hike the same distance? How far do you have to hike?
Problem 57
Use a graphing calculator to graphically solve the radical equation. Check the solution algebraically. $$\sqrt{x-5.6}=2.5$$
Problem 63
Use a graphing calculator to graphically solve the radical equation. Check the solution algebraically. $$\sqrt{3 x-2}=4-x$$
Problem 69
Does the equation model direct variation, inverse variation, or neither? \(y=9 x+1\)
Problem 70
What is \(30 \%\) of \(160 ?\) 105 is what percent of \(240 ?\)
Problem 82
Find the product. $$(x-5)(x-4)$$
Problem 97
Solve the equation. $$(x+4)(x-8)=0$$