Find all possible solutions to the problem.When Joan made a purchase, she received 16 cents in change. What are the possible combinations of coins she could have received?
What will be an ideal response?
1 dime, 1 nickel, 1 penny
1 dime, 6 pennies
3 nickels, 1 penny
2 nickels, 6 pennies
1 nickel, 11 pennies
16 pennies
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If ?t is increased by 1, then 
is increased by what percentage?
?
A. 91% B. 0.09% C. 1.09% D. 9%
Solve the problem.Southwest Dry Cleaners believes that it will need new equipment in 6 years. The equipment will cost $26,000. How much should be invested today at 2% compounded semiannually, to yield $26,000?
A. $24,548.93 B. $23,073.68 C. $25,169.60 D. $24,487.71
Simplify the expression. Express the answer so that all exponents are positive. Whenever an exponent is 0 or negative, we assume that the base is not 0.
A. 
B. 
C. 
D. 
Write in scientific notation.A business projects next year's profits to be $14,300,000.
A. 1.43 × 106 dollars B. 1.43 × 107 dollars C. 1.43 × 108 dollars D. 1.43 × 10-8 dollars