Consider the sets below.
u {x|x is any color}
a {x|x is a color of the rainbow}
r {x|x is red, yellow, or blue}
is r ⊂ a?

a. yes, because all the elements of set a are in set r
b. yes, because all the elements of set r are in set a
c. no, because each element in set a is not represented in set r
d. no, because each element in set r is not represented in set a

A set A is a subset of another set B if all elements of the set A are elements of the set B. In other words, the set A is contained inside the set B.

Consider sets A and R:

1. set A consists of seven colors of the rainbow: red, orange, yellow, green, blue, indigo and violet;

2. set R consists of three colors: red, yellow and blue.

As you can see all three colors from the set R belong to the set A, then the set R is the subset of A.

correct choice is B.

part d

step-by-step explanation:

theresa talked her parents into getting sd cards for her phone and her brother’s phone. inserting an sd card into a phone gives it more storage. they both get 8-gigabyte sd cards. how many bits of storage come with each sd card? type your answer in both scientific and standard notation.