©calculate the range for both sets of data:
set a: 2, 8.5, 1, 7.9, 1.7, 3.1, 2.2
set b: 2.8, 1.4, 2.8, 3.9, 7, 9.6
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set a:
set b:

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

The probability that an adult possesses a credit card is .70. a researcher selects two adults at random. by assuming the independence, the probability that the first adult possesses a credit card and the second adult does not possess a credit card is:

(05.02)a farmer has decided to divide his land area in half in order to plant soy and corn. calculate the area of the entire area so he knows how much soil is needed. a parallelogram with a height of 6 yards and side length 9 yards. the height forms a triangle with the slanted side of the rhombus with a base of 2.5 yards. rhombus is split into a soy half and a corn half. each bag of soil covers 40 square yards. how many bags should the farmer purchase?