How to graph piece wise functions

Triangles ABC and DEF are similar triangle or not similar triangle

How do I make 4 (x+3) = 3 (3x-1) into a simpler form without parentheses. Then substitute 3 for x.

Liz paid $42.00 for a new bike. This was 35% of the original price. What was the original price of the bike?

A college student takes out a $7500 loan from a bank. What will the balance of the loan be after one year (assuming the student has not made any payments yet) a. if bank charges 3.8% interest each year?

What is the slope of the line whose equation is 3x+2y=-4? Enter your answer in the box.

Jamie drop the quarter from a height of 6 feet above the ground and into a wishing well whose bottom was 5 feet below ground level. Write an expression representing the change in elevation of the quarter. How far did the quarter travel?

Solve for x:-3x-3=-3 (x+1) A. All real numbers B. No solution C. 6 D.-6

Brandus bought 1/3 pound of ground turkey and 1/4 pound of ground beef to make sausages. How many pounds of meat did he buy?

A manufacturer is designing a two-wheeled cart that can maneuver through tight spaces. On one test model, the wheel placement (center) and radius is modeled by the equation (x-1.5) ^2 + (y-1) ^2 = 16.

Solve for n 5 5/6 + n = 10 1/12