Solve the problem.How many 5-digit numbers can be formed using the digits 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 if the first digit cannot be 0? Repeated digits are allowed.
A. 59,049
B. 15,120
C. 90,000
D. 45,360
Answer: C
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Add or subtract as indicated.|12| - |11|
A. 23 B. -1 C. -23 D. 1
Find the limit.
A. 13
B. 19
C. 0
D. 
Solve the equation in part (a) graphically, expressing the solution to the nearest hundredth. Then, use the graph to solve the associated inequalities in parts (b) and (c), expressing endpoints to the nearest hundredth.(a) 
= 0; (b) 
> 0; (c) 
< 0
A. (a) {-1.32, 1.32} (b) (2.45, ?) ? (-1.32, 1.32) ? (-?, -2.45) 
B. (a) {-1.32, 1.32} (b) (1.25, ?) ? (-?, 1.25) (c) (-1.25, 1.25)
C. (a) {-1.32, 1.32} (b) (1.32, ?) ? (-?, -1.32) (c) (-1.32, 1.32)
D. (a) {-1.32, 1.32} (b) (-2.45, -1.32) ? (1.32, 2.45) 
Solve the problem.A parallelogram has a base of length x + 7 and a height of x + 2 and has an area of 50 square units. Find the base and height of the parallelogram. (A = BH)
A. height = 2 units; base = 25 units B. height = 1 unit; base = 50 units C. height = 6.25 units; base = 8 units D. height = 5 units; base = 10 units