Q. A sum of $2,500 is deposited in a bank account that pays 5.25% interest compounded weekly. How long will it take for the deposit to double? How long will it take you to accrue a balance of $7,500? What interest rate is required to yield a balance of $7,000 after 7 years?
Q. Solve the following logarithmic equations. A) log(x-1) - log(x+1) = 1; B) ln(x) = -1.147; C) ln(x) = (2/3)ln(8) + (1/2)ln(9) - ln(6); D) log5 (x) + log5 (x-4) = log5 (21); E) log4 (3x) - log4 (x2-1) = log4 (2)
Q. Solve the following exponential equations. A) 3(7x+1) = 3(4x-5); B) 8x = 2(x-6); C) 3(x+2) = 5: D) 4(x) = 2(3x+4); E) e(x - 6) = 3.5.
Q. Graph f(x) = 2x - 3 and approximate the zero of f to the nearest tenth. Also find the y-intercept and any horizontal and vertical asymptotes.
Q. In a research experiment, a population of fruit flies is increasing according to the law of exponential growth. After 2 days there are 100 flies, and after 4 days there are 300 flies. How many flies will there be after 5 days?