Simplify the expressions if it is possible. if the expression is already simplified write the word simplified. 1. -5x-6+3x 2.4/7c 3.9p+18-4p+13 4.172-b 5.45n+16m-12+5n-2m

In the given figure ar(adf) =ar(cda) and ar(cdf) = ar(cdf). show that abdc and cdfe are trapeziums.

Write an inequality and solve each problem. for exercises 11 and 12, interpret the solution.

The length of a rectangle is x times the square root of 100. the width is one-half y more than three-halves x. given that the area of the rectangle is 125 cm2, which equation could represent the rectangle in terms of x and y? a) 5xy − 15x = 125 b) 5xy + 15x = 125 c) 15x2 − 5xy = 125 d) 15x2 + 5xy = 125