Do you know hu
mine whether set b is a subset of set a.
6a = {0, 1, 2, 3, 4)
b={1, 2}
7. a=(2,3,5,7,11)
b = 13,5,7,9,113

45% of the trees in a park are apple trees. there are 27 apple trees in the park. how many trees are in the park in all?

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.

On the first of each month sasha runs a 5k race she keeps track of her times to track her progress her time in minutes is recorded in the table