1. Solve each equation algebraically. (a) log, (3x + 5) =4 (b) log x )+ log(x + 3) =1 2. Solve each exponential equation algebraically. Round two decimal places. (a) 453x+2 =6 (b) 20020.5x = 503. S=50,000e models the decay of sales for a given product over time in months since a certain ad campaign was used. (a) How long will it take for the number of sales to decrease by half? Solve algebraically and write solution as a complete sentence. (b) What does the model predict about sales one year from now? Solve algebraically and write solution as a complete sentence. 4. Suppose you have deposit $3,000 at 5% annual interest compounded monthly. (a) Write the equation that models the growth of the money if the equation for compound interest is FV = P 1+! (b) How long will it take for the money to reach $5,000? Solve algebraically and write solution as a complete sentence