Select all the ways you can tell that there is no solution to a system of equations. The equations have different slopes and have the same y-intercepts.

The equations have the same slope and have different y-intercepts.

The graph of the system shows the same line.

The graph of the system shows parallel lines.

The graph of the system shows perpendicular lines.

You are at a restaurant and owe $38 for your meal. you want to leave a 20% tip. how much will your tip be?

What is the average diastolic blood pressure for adults

Answer asap ill give ! ’ a sample of radioactive material decays over time. the number of grams, y , of the material remaining x days after the sample is discovered is given by the equation y = 10(0.5)^x. what does the number 10 represents in the equation? a. the half-life of the radioactive material, in days b. the amount of the sample, in grams, that decays each day c. the time, in days, it will take for the samples to decay completely d. the size of the sample, in grams, at the time the material was discovered