Find the value of integral ∫ C ( x + y + z ) d z , where C is parametrized by → r ( t ) = ⟨ 17 sin ( 5 t ) , 15 cos ( 5 t ) , 8 cos ( 5 t ) ⟩ for 0 ≤ t ≤ π .

Arecipe uses 2 cups of sugar to make 32 brownies. how many cups of sugar are needed to make 72 brownies?

Louise measured the perimeter of her rectangular scrapbook to be 154 cm. if the scrapbook is 45 cm wide, how long is the scrapbook?

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.