If the following cylinders shown below are similar, what is the value of x? A.3 B.5
C.10 D. 20

What is x and y (use substitution? ) 5x+3y=38 and y=3x+8?

Kapil needed to buy a long wooden beam. he went to two sawmills that each charge an initial fee plus an additional fee for each meter of wood. the following equation gives the price (in dollars) of a wooden beam from the first sawmill as a function of its length (in meters). p = 5+20xp=5+20x

Look at arnold's attempt to solve the equation for b: 3b = 12 b = 3 · 12 b = 36 describe the mistake that arnold made.