cindy and her younger sister have total of less than $15. cindy has twice as much money as her younger sister. let x represent the amount of money cindys younger sister has. tell whether each statement is true or false

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)

Organic apples are on special for $1.50 per pound. does total cost vary inversely or directly with the number of pounds purchased? find the cost of 3.4 pounds of apples. a. inversely: $5.10 b. directly; $5.10 c. inversely: $2.27 d. directly; $2.27

The price of a visit to the dentist is calculated according to the formula 50+100n50+100n where nn is the number of cavities the dentist finds. on your last visit to the dentist, 22 cavities were found. what was the cost of your visit?