3.

"a varies directly with b". If a = 4 when b = 21, find a when b-7.

What is the solution of the proportion 5/x+4=3/x-2

An adventure company wants to run a zip line from the top of one building that is 95 feet tall to the top of another building that is 55 feet tall. The two buildings are 30 feet apart. Estimate the length (in feet) of the zip line.

How can you use similar triangles to describe why the pantograph works as it does?

Four congruent circular holes with a diameter of 2 in. were punches out of a piece of paper. What is the area of the paper that is left? Use 3.14 for pi

The science club is raising money for a trip to the museum. Tickets to the museum cost $8. Five students already have a membership to the museum, so they will get in for free.

What number is equivalent to 4.054

Solve each system by graphing. Y=2x

The square root of a number is between 18 and 19

What is the slope-intercept form of the function described by this table? x : 1, 2, 3, 4, y : 2, 7, 12, 17, Enter your answer below y = ? x + ? (Fill in the question marks with the numbers above in x and y section)

Simplify 5x + 4x + 1. 10x 9x + 1 x+9