Write the expression with positive exponents, and simplify if possible.(-2)-4
A. 16
B. - 
C. -16
D. 
Answer: D
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Solve the formula for the indicated variable. Then use the supplied values to solve the equation.The total surface area of a rectangular solid of length L, width W, and height H is given by 
Solve for H. What is the height if the area A is 2768 cm2, the length is 35.5 cm, and the width is 12.9 cm? (All measurements are approximate.)
A. H = A - 2LW - 2L - 2W = 1760 cm
B. H = 
= 1160 cm
C. H = 
= 47.7 cm
D. H = 
= 19.1 cm
Write this word statement as an equation. Use x as the variable, and find all solutions from the set 
A number minus 7 equals 3.
A. x - 7 = 3; 10 B. 7 = 3 - x; 10 C. 7 - x = 3; 4 D. 7 = 3 - x; 4
Simplify the complex fraction.
A. 
B. 
C. 
D. 
Find the area of a regular polygon with perimeter 42.8 inches and apothem 9.6 inches.
(a) 104.8 in² (b) 205.44 in² (c) 52.4 in² (d) 410.88 in²