Select all the true statements question. I have no idea any of these. Somebody please help quickly

Missy took the act and was told her standard score (z-score) is –1. frank took the sat and was told his standard score (z-score) is –2. which student has a better chance of getting admitted to college based on their test score?

Ageologist had two rocks on a scale that weighed 4.6 kilograms together.rock a was 0.5 of the total weight.how much did rock a weigh?

Acontainer holds 0.7 liters of oil and vinegar. 3/4 of the mixture is vinegar. how many liters of oil are in the container? express your answer as both a fraction and a decimal.