Frank’s Pizzeria had a grand opening! Frank wants to determine how much a profit or loss they had for the first month of opening. The first week they earned $1,500 in pizza sales.

The second week they earned $1,200 in pizza sales. The third week they earned $800 in pizza

sales and the fourth week, they earned $1,420 in pizza sales. However, Frank’s Pizzeria needs

to spend $759 per week for supplies such as dough, cheese and plates.

Based on this information, how much is Frank’s Pizzeria’s profit or loss? Use SOLVE to show

your work.

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.