Solve the problem.A trader bought a stock for $20 and then sold it for $30. He bought it back for $38 and then sold it again for $48. How much did he gain or lose on these transactions?
What will be an ideal response?
He gained $20 on the transactions.
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Let 
denote the monthly payment if you borrow P dollars at a monthly rate of r expressed as a decimal, and the loan is repaid in t months. Use functional notation to indicate the monthly payment if you borrow 5726 dollars at an APR of 9.44 percent, and you repay the loan in 5 years. Use 3 decimal places for r.
What will be an ideal response?
Write the ratio in standard ratio form and fractional form and as a simplified fraction.Every two weeks Tracy earns $1500. Her paycheck stub shows that $500 was taken out for taxes. Tax Amount : Total Earned
A. $500 : $1500; 
; 
B. $1000 : $1500; 
; 
C. $1500 : $500; 
; 3
D. $500 : $1000; 
; 
Use logarithms to solve the equation for t. Round your answer to four decimal places.
?
?
t = __________
Fill in the blank(s) with the appropriate word(s).
Determine whether the given function is one-to-one. If it is one-to-one, find a formula for the inverse.f(x) = x 
A. f-1(x) = x2 + 3
B. f-1(x) = x3 - 3
C. f-1(x) = x 
D. Not one-to-one