18) Tissues cost \( \$ 2 \) / box. How many boxes did Scott buy if he spent \( \$ 14 \) ?

Jill wrote the number 40 . If her rule is add 7 , what is the fourth number in Jill's pattern? How can you check your answer?

A nurse is preparing to administer morphine 4 mg IM. Available is morphine injection \( 10 \mathrm{mg} / \mathrm{mL} \). How many mL should the nurse administer per dose? (Round the answer to the nearest tenth. Use a leading zero if it applies. Do not use a trailing zero.)

A nurse is preparing to administer cefazolin 1 g IM . The nurse reconstitutes a 1 g vial of cefazolin with sterile water to yield a final concentration of \( 330 \mathrm{mg} / \mathrm{mL} \). How many mL should the nurse administer? (Round the answer to the nearest whole number. Use a leading zero if it applies. Do not use a trailing zero.)

c) \( [(+9)-(-11)] \cdot(-4) \) d) \( -(-1)-(-9) \cdot[(-7)-(+11)] \)

A nurse is preparing to administer tobramycin \( 4 \mathrm{mg} / \mathrm{kg} / \) day IM divided in three equal doses to a client who weighs 60 kg . Available is tobramycin \( 40 \mathrm{mg} / \mathrm{mL} \). How many mL should the nurse administer per dose? (Round the answer to the whole number. Use a leading zero if it applies. Do not use a trailing zero.)