Daniel wants to buy a model car and race track with his allowance. He has $30 to spend. The model car costs $8.50, and he will spend the rest of the money on pieces of race track. EAch piece of race track costs $2.15. Answer the following questions to find the number of race track pieces he can buy. Part 1: Define the variable.
Part 2: Write an equation to find the number of race track pieces he can buy.
Part 3: Solve the equation and write only your answer below.
Part 4: Explain how you solved the equation. (Write in complete sentences.)

Acar travels at an average speed of 56 miles per hour. how long does it take to travel 196 miles

Select the margin of error that corresponds to the sample mean that corresponds to each population: a population mean of 360, a standard deviation of 4, and a margin of error of 2.5%

1. the manager of collins import autos believes the number of cars sold in a day (q) depends on two factors: (1) the number of hours the dealership is open (h) and (2) the number of salespersons working that day (s). after collecting data for two months (53 days), the manager estimates the following log-linear model: q 4 equation 1 a. explain, how to transform the log-linear model into linear form that can be estimated using multiple regression analysis. the computer output for the multiple regression analysis is shown below: q4 table b. how do you interpret coefficients b and c? if the dealership increases the number of salespersons by 20%, what will be the percentage increase in daily sales? c. test the overall model for statistical significance at the 5% significance level. d. what percent of the total variation in daily auto sales is explained by this equation? what could you suggest to increase this percentage? e. test the intercept for statistical significance at the 5% level of significance. if h and s both equal 0, are sales expected to be 0? explain why or why not? f. test the estimated coefficient b for statistical significance. if the dealership decreases its hours of operation by 10%, what is the expected impact on daily sales?