The table shows the cost, C, in dollars, to rent a car from Carl's Car Rentals. Distance, d (km)
0
100
200
300
400
Cost, C ($)
50
65
80
95
110
a) What is the fixed cost?
b) What is the variable cost?
c) Write an equation relating your answer from part (a) and part (b) [be sure to use the variables stated in the table].
d) What kind of variation is this relationship showing?
e) Calculate the cost of renting a car for a day and driving a total of 800km

Aquadratic equation in standard from is written ax^2= bx+c, where a,b and c are real numbers and a is not zero?

In the diagram, gef and hef are congruent. what is the value of x

Data from 2005 for various age groups show that for each $100 increase in the median weekly income for whites, the median weekly income of blacks increases by $105. also, for workers of ages 25 to 54 the median weekly income for whites was $676 and for blacks was $527. (a) let w represent the median weekly income for whites and b the median weekly income for blacks, and write the equation of the line that gives b as a linear function of w. b = (b) when the median weekly income for whites is $760, what does the equation in (a) predict for the median weekly income for blacks?