TRUE or FALSE: Percent increase just means you add that percent to the number. For example, $20 increased by 50% equals $70.
O True
O False. 50% increase means it increases by half the amount. So $20 increased by 50% equals
$30
O False. 50% increase means it increases by half the amount. So $20 increased by 50% equals
$45
O False. 50% increase means it increases by half the amount. So $20 increased by 50% equals
$40

    choose the correct definition for  extremo.  a.  end      b.  extra      c.  extract      d.  eventual 

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.

What number is 7 units left of -15?