The total cost of gasoline varies directly with the number of gallons purchased. edie pays $22.68 for 12
gallons of gasoline. which equation shows the relationship between the total cost of gasoline, c, and the
number of gallons purchased, n?
a. c = 1.89n
b. n = 22.68c
c. c = 22.68n
d. n = 1.89c

A

Step-by-step explanation:

take 22.68 and divide by 12 (1.89), so we know for every gallon of gas it cost $1.89. the problem states the amount of gallons purchased is n and the total cost is c. so, the total cost c is $1.89 times the gallons of gasoline purchased or c=1.89n

u what ?

step-by-step explanation:

so firstly, we need to isolate the y variables to be able to solve these inequalities. firstly, add 0.5x on both sides of the first inequality and subtract 1.5x on both sides of the second inequality:

now since the slope is positive for the first inequality, this means that the line going upwards belongs to the first inequality, and the line going downwards belongs to the second inequality.

next, since y ≥ in the first inequality, this means that the shaded region will be above the first inequality's line, thus shading regions a and b.

next, since y ≤ in the second inequality, this means that the shaded region is going to be below this line, thus shading regions a and c.

since both lines shade region a, this means that region a is the solution.

step-by-step explanation:

mark brainliest!