Write the phrase as a variable expression. Use x to represent "a number."The total of a number and 121
A. 121 - x
B. 121
C. 121x
D. x + 121
Answer: D
Mathematics
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Solve the problem.Find the length of the segment of the curve y = 
cosh 2x from x = 0 to x = ln 
.
A. 
B. 2
C. 
D. 
Mathematics
Select the smaller of the two given numbers.18, ?-30?
A. ?-30? B. 18
Mathematics
Add or subtract. Express the answer as a mixed number.18
+ 2
A. 19
B. 20
C. 18
D. 21
Mathematics
Determine the most appropriate metric unit to go in the blank. Choose from km, m, cm, mm, L, mL, kg, g, and mg.The bird's wingspan is 26 
.
A. mL B. mm C. cm D. mg E. m
Mathematics