43. The distance between Singapore and Sydney is 6300 km correct to the nearest 100 km. A businessman travelled from Singapore to Sydney and then back to Singapore.
He did this six times in a year. Between what limits is the total distance he travelled?

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

Erin bought christmas cards for $2 each to send to her family and friends. which variable is the dependent variable?

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.