Mr. Smith makes a pasta sauce He mixes tomato concentrate: olive oil at a ratio of 3:1

How many liters of tomato concentrate does he need to mix if he adds 3 liters of olive
oil?

The sat and act tests use very different grading scales. the sat math scores follow a normal distribution with mean 518 and standard deviation of 118. the act math scores follow a normal distribution with mean 20.7 and standard deviation of 5. suppose regan scores a 754 on the math portion of the sat. how much would her sister veronica need to score on the math portion of the act to meet or beat regan's score?

What is the correlation coefficient between the variables? round to three decimal places. enter your answer in the box

What is the value of x when x + 7 = 21?