Combine and simplify, if possible.-4
- 9
- 4
A. -4
B. 510
C. -91
D. -510
Answer: C
Mathematics
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Solve f(x) = g(x). Find the points of intersection of the graphs of the two functions.f(x) = x2 + 5x + 5g(x) = 19
A. x = 
B. x = -7, x = 2
C. x = -2, x = 7
D. no real numbers
Mathematics
Solve the equation and check your solution.-3.6 = 18 - x
A. x = 21.6 B. x = 13.9 C. x = 21.1 D. x = 14.4
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 plank is 2.2 
long.
A. cm B. m C. kg D. L E. g
Mathematics
Solve the equation.9 - t = 21
A. 12 B. -12 C. -13 D. 31
Mathematics