Solve the problem.70% of 300 is what number?
A. 2.1
B. 210
C. 2100
D. 21
Answer: B
Mathematics
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A recursion formula and the initial term(s) of a sequence are given. Write out the first five terms of the sequence.a1 = 1, an+1 = 
A. 1, 
, 
, 
, 
B. 1, 
, 
, 
, 
C. 1, 
, 
, 
, 
D. 1, 
, 
, 
, 
Mathematics
Solve the problem.The hydrogen potential, pH, of a substance is defined by 
where [H+] is measured in moles per liter. Find the pH of a sample of lake water whose [H+] is 3.05 x 10-9 moles per liter.
A. 7.3 B. 10.1 C. 8.5 D. 6.4
Mathematics
Solve the problem.How many of the "words" below have horizontal reflection symmetry? MOM BOB BIB TOOT ANNA WOW
A. 2 B. 4 C. 3 D. 5
Mathematics
Decide if the given number is a solution to the given equation.5r2 + 5 = 179.05; 5.9
A. Yes B. No
Mathematics