Blood pressure: high blood pressure has been identified as a risk factor for heart attacks and strokes. the proportion of u. s. adults with high blood pressure is 0.4. a sample of 40 u. s. adults is chosen. use the ti-84 plus calculator as needed. round the answer to at least four decimal places part: 0 / 6 part 1 of 6 is it appropriate to use the normal approximation to find the probability that more than 42% of the people in the sample have high blood pressure? (choose one) it (choose one) v appropriate to use the normal curve, since np = 10 and n(1 - p) = (choose one) 10.

mr. flanders’ class sold 47 doughnuts and   mr. rodriquez’s class sold 38 cartons of milk

step-by-step explanation:

let x be the number of doughnuts sold by mr. flanders’ class and y be the number of cartons sold by mr. rodriquez’s class.

1. together, the classes sold 85 items, then

x+y=85.

2. both classes earn earned $104.49 for their school. if doughnuts were sold for $1.35 each, then x doughnuts costed $1.35x. if cartons of milk were sold for $1.08 each, then y cartons costed $1.08y. hence,

1.35x+1.08y=104.49.

3. solve the system of two equations:

it would open into a square depending on the type of envelope i’m not sure about the second part