Solve the problem.The shape of a barbecue pit is like a parallelogram with height of 42 inches and a base of 18 inches. It costs $0.70 per square foot to fill the pit with charcoals. What is the total cost?
A. $529.2
B. $14.70
C. $44.10
D. $3.68
Answer: D
Mathematics
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Write the rational expression in simplest form.
?
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Find the domain and range.{(6, 8), (-7, 1), (12, 7), (10, 5), (-5, -2)}
A. D = {10, -7, 12, 6, -5}; R = {5, 1, 7, 8, -2} B. D = {10, 5, -7, 1, 12}; R = {7, 6, 8, -5, -2} C. D = {5, 1, 7, 8, -2}; R = {10, -7, 12, 6, -5} D. D = {7, 6, 8, -5, -2}; R = {10, 5, -7, 1, 12}
Mathematics
Decide whether the following is an expression or an equation. Simplify any expression or solve any equation.7x - (3x - 1) = 2
A. Expression; 2x + 3
B. Expression; 3x + 2
C. Equation; 
D. Equation; 
Mathematics
Solve the formula for the specified variable.I = 
for n
A. n = IR(Ir - E)
B. n = 
C. n = 
D. n = 
Mathematics