The total cost of gasoline varies directly with the number of gallons purchased. gas costs $1.77 per gallon. write a direct variation to model the total cost c for g gallons of gas.
a . c=g/1.77

b. c=1.77g

c. g=1.77c

d. c=g+1.77

Abus travels 36 miles in 45 minutes. enter the number of miles the bus travels in 60 minutes at this rate.

Given a: b and b: c, find a: b: c. write the ratio in simplest form. a: b=6: 10 and b: c=21: 33

Which statements describe the solutions to the inequality x< -20 check all that apply. there are infinite solutions. each solution is negative. each solution is positive. the solutions are both positive and negative. the solutions contain only integer values. the solutions contain rational number values.