Which line shows the first error in the solution?

3 (x-2) = 18 (1)

3x-6=18 (2)

3x-6+6=18+6 (3)

3x=24 (4)

x=21 (5)

A rotating sprinkler sprays a steady stream of water that is 9 feet long. If the sprinkler makes a full rotation, what is the approximate circumference of the circular area it sprays with water?

15+21 the distributive property to factor out the greatest common factor.

Suppose that pollution in a neighborhood comes from two factories, with marginal benefit curves given by MB1 = 12 - P1 and MB2 = 8 - P2. The level of pollution in the neighborhood is given by P = P1 + P2.

Find f (-2) for f (x) = 3x+4

The area of the green square is 9 ft2. The area of the red square is 16 ft2. whats the length of side c? .

Which system of equations is incondsistent? a. 2x+8y=6 5x+20y=2

Describe the graph of the function f (x) = x3 - 18x2 + 101x - 180. Include the y-intercept, x-intercepts, and the shape of the graph.

Patty is building a rope ladder for a tree house she needs to 6 ft pieces of rope for the side of the ladder she need seven pieces of rope each 15 inch long for steps how many feet of rope does Patty need to make a ladder

What is 10,386.145 rounded to nearest tenth?

your softball team has 8, 10, 9, and 3 hits during four games. Write and solve an equation to find how many hits the team needs in the fifth game to have a total of 40 hits