Lucas and his sister luisa are saving to buy a birthday present for their mother. the present costs $95. lucas earns $16 per week running errands for neighbors and spends $7 of it. luisa earns $24 per week babysitting and spends $12 of it. which expression can be used to find how many weeks it will take to save for the present? a 95 ÷ [(16 + 7) − (24 − 12)] b 95 ÷ [(16 + 7) − (24 + 12)] c 95 ÷ [(16 − 7) + (24 − 12)] d 95 ÷ [(16 − 7) + (24 + 12)]

(05.08a)triangle abc is transformed to similar triangle a′b′c′ below: a coordinate plane is shown. triangle abc has vertices a at 2 comma 6, b at 2 comma 4, and c at 4 comma 4. triangle a prime b prime c prime has vertices a prime at 1 comma 3, b prime at 1 comma 2, and c prime at 2 comma 2. what is the scale factor of dilation? 1 over 2 1 over 3 1 over 4 1 over 5

Adoctor administers a drug to a 38-kg patient, using a dosage formula of 50 mg/kg/day. assume that the drug is available in a 100 mg per 5 ml suspension or in 500 mg tablets. a. how many tablets should a 38-kg patient take every four hours? b. the suspension with a drop factor of 10 ggt/ml delivers the drug intravenously to the patient over a twelve-hour period. what flow rate should be used in units of ggt/hr? a. the patient should take nothing pills every four hours. (type an integer or decimal rounded to the nearest hundredth as needed.)

David leaves his house to go to school. he walks 200 meters west and 300 meters north. how far is david from his original starting point?