Complete this activity. mr. home buys two quarts of ice cream, one carton of soda, and three sacks of cookies for a sunday school party. the respective unit prices are 60, 70, and 45 for each unit. on his way home mr. home remembers that he will have several extra visitors, returns to the same store, and buys three times the same order. find mr. home's total expense by matrix calculations. $ a0

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Find the area of the unshaded square

Ariana starts with 100 milligrams of a radioactive substance. the amount of the substance decreases by 20% each week for a number of weeks, w. the expression 100(1−0.2)w finds the amount of radioactive substance remaining after w weeks. which statement about this expression is true? a) it is the difference between the initial amount and the percent decrease. b) it is the difference between the initial amount and the decay factor after w weeks. c) it is the initial amount raised to the decay factor after w weeks. d) it is the product of the initial amount and the decay factor after w weeks.