At an internet cafe, there is a flat fee to log into a computer and an additional charge for each
minute on the computer. The fee (in dollars) for
using a Mac for x minutes is given by
M=0.5+0.07x.
The charge for using a PC for x minutes is shown
in the graph below.
P
3.5
3
2.5
2
1+
0.5
3
? 23
Which kind of machine has a larger flat fee just
to log in?

3x + 4y = 5 x- 3y = -7 solve by substitution

Question 5 of 10 2 points if a population is a sample of the population could be a. registered voters; all citizens o o b. baptists; all religious people o c. people who purchased shoes; all customers o d. the entire school faculty; math teachers

Let us imagine that the number of automobile accidents in a certain region are related to the regional number of registered automobiles in tens of thousands (b1), alcoholic beverage sales in $10,000 (b2), and decrease in the price of gasoline in cents (b3). furthermore, imagine that the regression formula has been calculated as: y = a + b1x1 + b2x2 + b3x3 where y = the number of automobile accidents, a = 7.5, b1 = 3.5, b2 = 4.5, and b3 = 2.5 calculate the expected number of automobile accidents for a football weekend if the region has 25,000 registered vehicles, $75,000 worth of beer is sold, and a gas war causes a 10 cent drop in a gallon of gas.