The expression 10a+6c gives the cost (in dollars) for a adults and c children to eat at a buffet restaurant. a. The cost for 1 adult is $ ?
. The cost for 1 child is $ ?

b. The total cost for 1 adult and 3 children is $ ?

Question 2
c. Is $30 enough for a family of 2 adults and 2 children to eat at the buffet?..

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?