I've been having trouble with this and need help! Please? Rhea has decided to survey only patients who have been actively following a Mediterranean diet for at least six months. She has grouped these patients by age: 40-49 years, 50-59 years, and 60-69 years. Given these age groups, how should she choose her sample to find the effects of the Mediterranean diet? Why?

Find the value of p for which the polynomial 3x^3 -x^2 + px +1 is exactly divisible by x-1, hence factorise the polynomial

Mason and christian go to the movie theater and purchase refreshments for their friends. mason spends a total of $45.75 on 3 bags of popcorn and 6 drinks. christian spends a total of $71.50 on 6 bags of popcorn and 4 drinks. write a system of equations that can be used to find the price of one bag of popcorn and the price of one drink. using these equations, determine and state the price of a drink, to the nearest cent.

30 ! the graph shows the number of siblings different students have. select from the drop-down menus to correctly complete the statement.