For the following systems of equations in echelon form, tell how many solutions there are in nonnegative integers.3x + 2y + 2z = 170 y - 4z = 10
A. 15
B. 5
C. 6
D. 7
Answer: C
Mathematics
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If two fair dice, one red and one white, are rolled, in how many ways can the result be obtained?The sum of the two dice is less than 5.
A. 4 ways B. 6 ways C. 10 ways D. 5 ways
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Evaluate the expression using a rule for exponents.110
A. -1 B. 11 C. 1 D. 0
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Translate to a proportion.94 is 99% of what?
A. 
= 
B. 
= 
C. 
= 
D. 
= 
Mathematics
Divide, when possible.14 ÷ 14
A. Undefined B. 1 C. 14 D. 0
Mathematics