Ineed to find the radius and the diameter of this circle

Consider the system: y = 3x + 5 y = ax + b what values for a and b make the system inconsistent? what values for a and b make the system consistent and dependent? explain

You receive 15% of the profit from a car wash how much money do you receive from a profit of 300

In priyas math class there are 10 boys and 15 girls. what is the ratio of boys to girls in priyas math class? express your answer as a decimal