:georgina wants to make a 42% citric acid solution. if she has 0.5 liters of water, how many liters of a 49% citric acid solution should she add?
a)1.5 liters
b)6 liters
c)3 liters
d)4.5 liters
e)9 liters

Tan198=asin164=? how to solve this? ?

Solve the system of equations using the linear combination method. {4x−3y=127x−3y=3 enter your answers in the boxes.

Aresearch study is done to find the average age of all u.s. factory workers. the researchers asked every factory worker in ohio what their birth year is. this research is an example of a census survey convenience sample simple random sample