To walk to her friend's house, Cristal normally walks 63 yards north and 16 yards east as shown. How many yards shorter would it be if Julie took the diagonal shortcut, x?

Solve the given system of equations. 2y= -x+9 , 3x-6= -15

Janie has $3. she earns $1.20 for each chore she does and can do fractions of chores. she wants to earn enough money to buy a cd for $13.50. write an inequality to determine the number of chores, c, janie could do to have enough money to buy the cd.

Awater holding tank measures 105 m long, 50 m wide, and 8 m deep. traces of mercury have been found in the tank, with a concen- tration of 60 mg/l. what is the total mass of mercury in the tank? answer in units of kg.