?You need 50 pounds of two commodities costing $1.75 and $2.1 per pound. Find the inverse function of the cost function 
.
?
A. ?
B. ?
C. ?
D. ?
E. ?
Answer: D
Mathematics
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Write the indicated term of the binomial expansion.(3x + 2)3; 3rd term
A. 72x B. 54x2 C. 36x D. 24
Mathematics
Write parentheses around the two addends that would be easiest to add. Then find the sum.
+ 
+ 15
A. (
+ 
) + 15 = 5
B. 
+ (
+ 15) = 25
C. (
+ 
+ 15) = 5
D. 
+ 
+ 15 = 
Mathematics
Write the word phrase in symbols, using x as the variable.A number subtracted from -9
A. -9 - x B. x - (-9) C. 9 - x D. x - 9
Mathematics
Write the given number in the situation as an integer.The submarine dove to a depth of 216 feet below the surface of the water.
A. -216 feet B. 216 feet
Mathematics